Home / 87,280.64-130,920.96-40,508

Finding the Fourth Proportional to 87,280.64, 130,920.96 and 40,508

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Solution

The fourth proportional to 87,280.64, 130,920.96 and 40,508 is: 60,762.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,280.64 : 130,920.96 = 40,508 : x
  2. Step 2: Convert to fraction form
    87,280.64/130,920.96 = 40,508/x
  3. Step 3: Cross multiply
    87,280.64x = 130,920.96 × 40,508
  4. Step 4: Simplify right side
    87,280.64x = 5,303,346,247.68
  5. Step 5: Solve for x
    x = 5,303,346,247.68/87,280.64
  6. Step 6: Final answer
    x = 60,762.00

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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.