Home / 85,208.46-117,587.91-51,236.40

Finding the Fourth Proportional to 85,208.46, 117,587.91 and 51,236.40

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Solution

The fourth proportional to 85,208.46, 117,587.91 and 51,236.40 is: 70,706.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,208.46 : 117,587.91 = 51,236.40 : x
  2. Step 2: Convert to fraction form
    85,208.46/117,587.91 = 51,236.40/x
  3. Step 3: Cross multiply
    85,208.46x = 117,587.91 × 51,236.40
  4. Step 4: Simplify right side
    85,208.46x = 6,024,780,935.74
  5. Step 5: Solve for x
    x = 6,024,780,935.74/85,208.46
  6. Step 6: Final answer
    x = 70,706.37

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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.