Home / 87,246.40-130,837.20-31,064.80

Finding the Fourth Proportional to 87,246.40, 130,837.20 and 31,064.80

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Solution

The fourth proportional to 87,246.40, 130,837.20 and 31,064.80 is: 46,585.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,246.40 : 130,837.20 = 31,064.80 : x
  2. Step 2: Convert to fraction form
    87,246.40/130,837.20 = 31,064.80/x
  3. Step 3: Cross multiply
    87,246.40x = 130,837.20 × 31,064.80
  4. Step 4: Simplify right side
    87,246.40x = 4,064,431,450.56
  5. Step 5: Solve for x
    x = 4,064,431,450.56/87,246.40
  6. Step 6: Final answer
    x = 46,585.66

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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.