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Finding the Fourth Proportional to 70,551.60, 97,360.92 and 38,720.43

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Solution

The fourth proportional to 70,551.60, 97,360.92 and 38,720.43 is: 53,434.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,551.60 : 97,360.92 = 38,720.43 : x
  2. Step 2: Convert to fraction form
    70,551.60/97,360.92 = 38,720.43/x
  3. Step 3: Cross multiply
    70,551.60x = 97,360.92 × 38,720.43
  4. Step 4: Simplify right side
    70,551.60x = 3,769,856,687.60
  5. Step 5: Solve for x
    x = 3,769,856,687.60/70,551.60
  6. Step 6: Final answer
    x = 53,434.04

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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.