Home / 56,625.38-78,143.96-31,132.82

Finding the Fourth Proportional to 56,625.38, 78,143.96 and 31,132.82

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Solution

The fourth proportional to 56,625.38, 78,143.96 and 31,132.82 is: 42,963.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,625.38 : 78,143.96 = 31,132.82 : x
  2. Step 2: Convert to fraction form
    56,625.38/78,143.96 = 31,132.82/x
  3. Step 3: Cross multiply
    56,625.38x = 78,143.96 × 31,132.82
  4. Step 4: Simplify right side
    56,625.38x = 2,432,841,840.77
  5. Step 5: Solve for x
    x = 2,432,841,840.77/56,625.38
  6. Step 6: Final answer
    x = 42,963.81

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1.5x scale

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.