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Finding the Fourth Proportional to 85,892.40, 118,801.08 and 75,956.40

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Solution

The fourth proportional to 85,892.40, 118,801.08 and 75,956.40 is: 105,058.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,892.40 : 118,801.08 = 75,956.40 : x
  2. Step 2: Convert to fraction form
    85,892.40/118,801.08 = 75,956.40/x
  3. Step 3: Cross multiply
    85,892.40x = 118,801.08 × 75,956.40
  4. Step 4: Simplify right side
    85,892.40x = 9,023,702,352.91
  5. Step 5: Solve for x
    x = 9,023,702,352.91/85,892.40
  6. Step 6: Final answer
    x = 105,058.22

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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.