Home / 56,625.65-78,144.29-31,133.13

Finding the Fourth Proportional to 56,625.65, 78,144.29 and 31,133.13

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Solution

The fourth proportional to 56,625.65, 78,144.29 and 31,133.13 is: 42,964.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,625.65 : 78,144.29 = 31,133.13 : x
  2. Step 2: Convert to fraction form
    56,625.65/78,144.29 = 31,133.13/x
  3. Step 3: Cross multiply
    56,625.65x = 78,144.29 × 31,133.13
  4. Step 4: Simplify right side
    56,625.65x = 2,432,876,182.49
  5. Step 5: Solve for x
    x = 2,432,876,182.49/56,625.65
  6. Step 6: Final answer
    x = 42,964.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.