Home / 87,731.67-121,070.70-47,446.23

Finding the Fourth Proportional to 87,731.67, 121,070.70 and 47,446.23

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Solution

The fourth proportional to 87,731.67, 121,070.70 and 47,446.23 is: 65,476.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,731.67 : 121,070.70 = 47,446.23 : x
  2. Step 2: Convert to fraction form
    87,731.67/121,070.70 = 47,446.23/x
  3. Step 3: Cross multiply
    87,731.67x = 121,070.70 × 47,446.23
  4. Step 4: Simplify right side
    87,731.67x = 5,744,348,278.46
  5. Step 5: Solve for x
    x = 5,744,348,278.46/87,731.67
  6. Step 6: Final answer
    x = 65,476.34

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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.