Home / 68,439.66-94,440.58-38,220.79

Finding the Fourth Proportional to 68,439.66, 94,440.58 and 38,220.79

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Solution

The fourth proportional to 68,439.66, 94,440.58 and 38,220.79 is: 52,741.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,439.66 : 94,440.58 = 38,220.79 : x
  2. Step 2: Convert to fraction form
    68,439.66/94,440.58 = 38,220.79/x
  3. Step 3: Cross multiply
    68,439.66x = 94,440.58 × 38,220.79
  4. Step 4: Simplify right side
    68,439.66x = 3,609,593,370.46
  5. Step 5: Solve for x
    x = 3,609,593,370.46/68,439.66
  6. Step 6: Final answer
    x = 52,741.25

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.