Home / 87,008.81-130,380.36-64,714.37

Finding the Fourth Proportional to 87,008.81, 130,380.36 and 64,714.37

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Solution

The fourth proportional to 87,008.81, 130,380.36 and 64,714.37 is: 96,972.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,008.81 : 130,380.36 = 64,714.37 : x
  2. Step 2: Convert to fraction form
    87,008.81/130,380.36 = 64,714.37/x
  3. Step 3: Cross multiply
    87,008.81x = 130,380.36 × 64,714.37
  4. Step 4: Simplify right side
    87,008.81x = 8,437,482,205.87
  5. Step 5: Solve for x
    x = 8,437,482,205.87/87,008.81
  6. Step 6: Final answer
    x = 96,972.74

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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.