Home / 75,340.05-103,971.20-42,631.85

Finding the Fourth Proportional to 75,340.05, 103,971.20 and 42,631.85

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Solution

The fourth proportional to 75,340.05, 103,971.20 and 42,631.85 is: 58,833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,340.05 : 103,971.20 = 42,631.85 : x
  2. Step 2: Convert to fraction form
    75,340.05/103,971.20 = 42,631.85/x
  3. Step 3: Cross multiply
    75,340.05x = 103,971.20 × 42,631.85
  4. Step 4: Simplify right side
    75,340.05x = 4,432,483,869.70
  5. Step 5: Solve for x
    x = 4,432,483,869.70/75,340.05
  6. Step 6: Final answer
    x = 58,833.04

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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.