Home / 87,790.52-121,150.01-47,503.40

Finding the Fourth Proportional to 87,790.52, 121,150.01 and 47,503.40

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Solution

The fourth proportional to 87,790.52, 121,150.01 and 47,503.40 is: 65,554.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,790.52 : 121,150.01 = 47,503.40 : x
  2. Step 2: Convert to fraction form
    87,790.52/121,150.01 = 47,503.40/x
  3. Step 3: Cross multiply
    87,790.52x = 121,150.01 × 47,503.40
  4. Step 4: Simplify right side
    87,790.52x = 5,755,036,541.77
  5. Step 5: Solve for x
    x = 5,755,036,541.77/87,790.52
  6. Step 6: Final answer
    x = 65,554.20

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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.