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Finding the Fourth Proportional to 71,006.88, 97,988.88 and 39,176.08

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Solution

The fourth proportional to 71,006.88, 97,988.88 and 39,176.08 is: 54,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,006.88 : 97,988.88 = 39,176.08 : x
  2. Step 2: Convert to fraction form
    71,006.88/97,988.88 = 39,176.08/x
  3. Step 3: Cross multiply
    71,006.88x = 97,988.88 × 39,176.08
  4. Step 4: Simplify right side
    71,006.88x = 3,838,820,201.99
  5. Step 5: Solve for x
    x = 3,838,820,201.99/71,006.88
  6. Step 6: Final answer
    x = 54,062.65

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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.