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Finding the Fourth Proportional to 75,480.60, 113,221.08 and 25,561.20

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Solution

The fourth proportional to 75,480.60, 113,221.08 and 25,561.20 is: 38,341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,480.60 : 113,221.08 = 25,561.20 : x
  2. Step 2: Convert to fraction form
    75,480.60/113,221.08 = 25,561.20/x
  3. Step 3: Cross multiply
    75,480.60x = 113,221.08 × 25,561.20
  4. Step 4: Simplify right side
    75,480.60x = 2,894,066,670.10
  5. Step 5: Solve for x
    x = 2,894,066,670.10/75,480.60
  6. Step 6: Final answer
    x = 38,341.86

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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.