Home / 87,729.35-121,066.18-47,442.92

Finding the Fourth Proportional to 87,729.35, 121,066.18 and 47,442.92

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Solution

The fourth proportional to 87,729.35, 121,066.18 and 47,442.92 is: 65,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,729.35 : 121,066.18 = 47,442.92 : x
  2. Step 2: Convert to fraction form
    87,729.35/121,066.18 = 47,442.92/x
  3. Step 3: Cross multiply
    87,729.35x = 121,066.18 × 47,442.92
  4. Step 4: Simplify right side
    87,729.35x = 5,743,732,368.51
  5. Step 5: Solve for x
    x = 5,743,732,368.51/87,729.35
  6. Step 6: Final answer
    x = 65,471.05

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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.