Home / 87,308.64-130,962.96-40,536

Finding the Fourth Proportional to 87,308.64, 130,962.96 and 40,536

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Solution

The fourth proportional to 87,308.64, 130,962.96 and 40,536 is: 60,804.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,308.64 : 130,962.96 = 40,536 : x
  2. Step 2: Convert to fraction form
    87,308.64/130,962.96 = 40,536/x
  3. Step 3: Cross multiply
    87,308.64x = 130,962.96 × 40,536
  4. Step 4: Simplify right side
    87,308.64x = 5,308,714,546.56
  5. Step 5: Solve for x
    x = 5,308,714,546.56/87,308.64
  6. Step 6: Final answer
    x = 60,804.00

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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.