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Finding the Fourth Proportional to 70,208.55, 96,890.13 and 38,376.75

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Solution

The fourth proportional to 70,208.55, 96,890.13 and 38,376.75 is: 52,961.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,208.55 : 96,890.13 = 38,376.75 : x
  2. Step 2: Convert to fraction form
    70,208.55/96,890.13 = 38,376.75/x
  3. Step 3: Cross multiply
    70,208.55x = 96,890.13 × 38,376.75
  4. Step 4: Simplify right side
    70,208.55x = 3,718,328,296.48
  5. Step 5: Solve for x
    x = 3,718,328,296.48/70,208.55
  6. Step 6: Final answer
    x = 52,961.19

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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.