Home / 75,338.57-103,959.65-45,123.10

Finding the Fourth Proportional to 75,338.57, 103,959.65 and 45,123.10

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Solution

The fourth proportional to 75,338.57, 103,959.65 and 45,123.10 is: 62,265.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,338.57 : 103,959.65 = 45,123.10 : x
  2. Step 2: Convert to fraction form
    75,338.57/103,959.65 = 45,123.10/x
  3. Step 3: Cross multiply
    75,338.57x = 103,959.65 × 45,123.10
  4. Step 4: Simplify right side
    75,338.57x = 4,690,981,535.82
  5. Step 5: Solve for x
    x = 4,690,981,535.82/75,338.57
  6. Step 6: Final answer
    x = 62,265.34

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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.