Home / 87,319.04-130,984.32-31,953.92

Finding the Fourth Proportional to 87,319.04, 130,984.32 and 31,953.92

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Solution

The fourth proportional to 87,319.04, 130,984.32 and 31,953.92 is: 47,932.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,319.04 : 130,984.32 = 31,953.92 : x
  2. Step 2: Convert to fraction form
    87,319.04/130,984.32 = 31,953.92/x
  3. Step 3: Cross multiply
    87,319.04x = 130,984.32 × 31,953.92
  4. Step 4: Simplify right side
    87,319.04x = 4,185,462,482.53
  5. Step 5: Solve for x
    x = 4,185,462,482.53/87,319.04
  6. Step 6: Final answer
    x = 47,932.99

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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.