Home / 75,030.78-112,387.41-48,657.18

Finding the Fourth Proportional to 75,030.78, 112,387.41 and 48,657.18

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Solution

The fourth proportional to 75,030.78, 112,387.41 and 48,657.18 is: 72,882.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,030.78 : 112,387.41 = 48,657.18 : x
  2. Step 2: Convert to fraction form
    75,030.78/112,387.41 = 48,657.18/x
  3. Step 3: Cross multiply
    75,030.78x = 112,387.41 × 48,657.18
  4. Step 4: Simplify right side
    75,030.78x = 5,468,454,438.10
  5. Step 5: Solve for x
    x = 5,468,454,438.10/75,030.78
  6. Step 6: Final answer
    x = 72,882.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.