Home / 87,426.15-130,917.77-54,211.08

Finding the Fourth Proportional to 87,426.15, 130,917.77 and 54,211.08

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Solution

The fourth proportional to 87,426.15, 130,917.77 and 54,211.08 is: 81,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,426.15 : 130,917.77 = 54,211.08 : x
  2. Step 2: Convert to fraction form
    87,426.15/130,917.77 = 54,211.08/x
  3. Step 3: Cross multiply
    87,426.15x = 130,917.77 × 54,211.08
  4. Step 4: Simplify right side
    87,426.15x = 7,097,193,702.89
  5. Step 5: Solve for x
    x = 7,097,193,702.89/87,426.15
  6. Step 6: Final answer
    x = 81,179.30

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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.