Home / 87,951.37-121,372.59-47,666.13

Finding the Fourth Proportional to 87,951.37, 121,372.59 and 47,666.13

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Solution

The fourth proportional to 87,951.37, 121,372.59 and 47,666.13 is: 65,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,951.37 : 121,372.59 = 47,666.13 : x
  2. Step 2: Convert to fraction form
    87,951.37/121,372.59 = 47,666.13/x
  3. Step 3: Cross multiply
    87,951.37x = 121,372.59 × 47,666.13
  4. Step 4: Simplify right side
    87,951.37x = 5,785,361,653.38
  5. Step 5: Solve for x
    x = 5,785,361,653.38/87,951.37
  6. Step 6: Final answer
    x = 65,779.10

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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.