Home / 78,132.11-107,821.40-44,140.73

Finding the Fourth Proportional to 78,132.11, 107,821.40 and 44,140.73

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Solution

The fourth proportional to 78,132.11, 107,821.40 and 44,140.73 is: 60,913.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,132.11 : 107,821.40 = 44,140.73 : x
  2. Step 2: Convert to fraction form
    78,132.11/107,821.40 = 44,140.73/x
  3. Step 3: Cross multiply
    78,132.11x = 107,821.40 × 44,140.73
  4. Step 4: Simplify right side
    78,132.11x = 4,759,314,545.81
  5. Step 5: Solve for x
    x = 4,759,314,545.81/78,132.11
  6. Step 6: Final answer
    x = 60,913.69

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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.