Home / 87,221.81-130,832.28-31,064.11

Finding the Fourth Proportional to 87,221.81, 130,832.28 and 31,064.11

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Solution

The fourth proportional to 87,221.81, 130,832.28 and 31,064.11 is: 46,596.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,221.81 : 130,832.28 = 31,064.11 : x
  2. Step 2: Convert to fraction form
    87,221.81/130,832.28 = 31,064.11/x
  3. Step 3: Cross multiply
    87,221.81x = 130,832.28 × 31,064.11
  4. Step 4: Simplify right side
    87,221.81x = 4,064,188,010.39
  5. Step 5: Solve for x
    x = 4,064,188,010.39/87,221.81
  6. Step 6: Final answer
    x = 46,596.00

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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.