Home / 78,034.24-107,585.58-49,729.60

Finding the Fourth Proportional to 78,034.24, 107,585.58 and 49,729.60

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Solution

The fourth proportional to 78,034.24, 107,585.58 and 49,729.60 is: 68,562.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,034.24 : 107,585.58 = 49,729.60 : x
  2. Step 2: Convert to fraction form
    78,034.24/107,585.58 = 49,729.60/x
  3. Step 3: Cross multiply
    78,034.24x = 107,585.58 × 49,729.60
  4. Step 4: Simplify right side
    78,034.24x = 5,350,187,859.17
  5. Step 5: Solve for x
    x = 5,350,187,859.17/78,034.24
  6. Step 6: Final answer
    x = 68,562.06

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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.