Home / 56,626.19-78,144.66-31,132.73

Finding the Fourth Proportional to 56,626.19, 78,144.66 and 31,132.73

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Solution

The fourth proportional to 56,626.19, 78,144.66 and 31,132.73 is: 42,963.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,626.19 : 78,144.66 = 31,132.73 : x
  2. Step 2: Convert to fraction form
    56,626.19/78,144.66 = 31,132.73/x
  3. Step 3: Cross multiply
    56,626.19x = 78,144.66 × 31,132.73
  4. Step 4: Simplify right side
    56,626.19x = 2,432,856,600.72
  5. Step 5: Solve for x
    x = 2,432,856,600.72/56,626.19
  6. Step 6: Final answer
    x = 42,963.46

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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.