Home / 77,429.04-106,891.56-54,785.76

Finding the Fourth Proportional to 77,429.04, 106,891.56 and 54,785.76

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Solution

The fourth proportional to 77,429.04, 106,891.56 and 54,785.76 is: 75,632.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,429.04 : 106,891.56 = 54,785.76 : x
  2. Step 2: Convert to fraction form
    77,429.04/106,891.56 = 54,785.76/x
  3. Step 3: Cross multiply
    77,429.04x = 106,891.56 × 54,785.76
  4. Step 4: Simplify right side
    77,429.04x = 5,856,135,352.19
  5. Step 5: Solve for x
    x = 5,856,135,352.19/77,429.04
  6. Step 6: Final answer
    x = 75,632.29

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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.