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Finding the Fourth Proportional to 71,160.96, 98,201.34 and 39,329.91

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Solution

The fourth proportional to 71,160.96, 98,201.34 and 39,329.91 is: 54,274.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,160.96 : 98,201.34 = 39,329.91 : x
  2. Step 2: Convert to fraction form
    71,160.96/98,201.34 = 39,329.91/x
  3. Step 3: Cross multiply
    71,160.96x = 98,201.34 × 39,329.91
  4. Step 4: Simplify right side
    71,160.96x = 3,862,249,864.08
  5. Step 5: Solve for x
    x = 3,862,249,864.08/71,160.96
  6. Step 6: Final answer
    x = 54,274.84

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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.