Home / 87,022.08-130,350.72-55,699.20

Finding the Fourth Proportional to 87,022.08, 130,350.72 and 55,699.20

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Solution

The fourth proportional to 87,022.08, 130,350.72 and 55,699.20 is: 83,432.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,022.08 : 130,350.72 = 55,699.20 : x
  2. Step 2: Convert to fraction form
    87,022.08/130,350.72 = 55,699.20/x
  3. Step 3: Cross multiply
    87,022.08x = 130,350.72 × 55,699.20
  4. Step 4: Simplify right side
    87,022.08x = 7,260,430,823.42
  5. Step 5: Solve for x
    x = 7,260,430,823.42/87,022.08
  6. Step 6: Final answer
    x = 83,432.05

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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.