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Finding the Fourth Proportional to 75,854.40, 113,522.40 and 66,523.20

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Solution

The fourth proportional to 75,854.40, 113,522.40 and 66,523.20 is: 99,557.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,854.40 : 113,522.40 = 66,523.20 : x
  2. Step 2: Convert to fraction form
    75,854.40/113,522.40 = 66,523.20/x
  3. Step 3: Cross multiply
    75,854.40x = 113,522.40 × 66,523.20
  4. Step 4: Simplify right side
    75,854.40x = 7,551,873,319.68
  5. Step 5: Solve for x
    x = 7,551,873,319.68/75,854.40
  6. Step 6: Final answer
    x = 99,557.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.