Home / 75,187.04-103,761.56-42,930.39

Finding the Fourth Proportional to 75,187.04, 103,761.56 and 42,930.39

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Solution

The fourth proportional to 75,187.04, 103,761.56 and 42,930.39 is: 59,245.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,187.04 : 103,761.56 = 42,930.39 : x
  2. Step 2: Convert to fraction form
    75,187.04/103,761.56 = 42,930.39/x
  3. Step 3: Cross multiply
    75,187.04x = 103,761.56 × 42,930.39
  4. Step 4: Simplify right side
    75,187.04x = 4,454,524,023.16
  5. Step 5: Solve for x
    x = 4,454,524,023.16/75,187.04
  6. Step 6: Final answer
    x = 59,245.91

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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.