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Finding the Fourth Proportional to 71,367.60, 98,488.08 and 39,537

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Solution

The fourth proportional to 71,367.60, 98,488.08 and 39,537 is: 54,561.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,367.60 : 98,488.08 = 39,537 : x
  2. Step 2: Convert to fraction form
    71,367.60/98,488.08 = 39,537/x
  3. Step 3: Cross multiply
    71,367.60x = 98,488.08 × 39,537
  4. Step 4: Simplify right side
    71,367.60x = 3,893,923,218.96
  5. Step 5: Solve for x
    x = 3,893,923,218.96/71,367.60
  6. Step 6: Final answer
    x = 54,561.50

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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.