Home / 87,280.08-130,967.04-34,690

Finding the Fourth Proportional to 87,280.08, 130,967.04 and 34,690

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Solution

The fourth proportional to 87,280.08, 130,967.04 and 34,690 is: 52,053.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,280.08 : 130,967.04 = 34,690 : x
  2. Step 2: Convert to fraction form
    87,280.08/130,967.04 = 34,690/x
  3. Step 3: Cross multiply
    87,280.08x = 130,967.04 × 34,690
  4. Step 4: Simplify right side
    87,280.08x = 4,543,246,617.60
  5. Step 5: Solve for x
    x = 4,543,246,617.60/87,280.08
  6. Step 6: Final answer
    x = 52,053.65

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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.