Home / 87,204.20-130,547.10-57,655.40

Finding the Fourth Proportional to 87,204.20, 130,547.10 and 57,655.40

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Solution

The fourth proportional to 87,204.20, 130,547.10 and 57,655.40 is: 86,311.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,204.20 : 130,547.10 = 57,655.40 : x
  2. Step 2: Convert to fraction form
    87,204.20/130,547.10 = 57,655.40/x
  3. Step 3: Cross multiply
    87,204.20x = 130,547.10 × 57,655.40
  4. Step 4: Simplify right side
    87,204.20x = 7,526,745,269.34
  5. Step 5: Solve for x
    x = 7,526,745,269.34/87,204.20
  6. Step 6: Final answer
    x = 86,311.73

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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.