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Finding the Fourth Proportional to 71,182.70, 98,223.59 and 39,347.27

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Solution

The fourth proportional to 71,182.70, 98,223.59 and 39,347.27 is: 54,294.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,182.70 : 98,223.59 = 39,347.27 : x
  2. Step 2: Convert to fraction form
    71,182.70/98,223.59 = 39,347.27/x
  3. Step 3: Cross multiply
    71,182.70x = 98,223.59 × 39,347.27
  4. Step 4: Simplify right side
    71,182.70x = 3,864,829,428.25
  5. Step 5: Solve for x
    x = 3,864,829,428.25/71,182.70
  6. Step 6: Final answer
    x = 54,294.51

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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.