Home / 75,209.38-112,799.50-28,465.90

Finding the Fourth Proportional to 75,209.38, 112,799.50 and 28,465.90

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Solution

The fourth proportional to 75,209.38, 112,799.50 and 28,465.90 is: 42,693.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,209.38 : 112,799.50 = 28,465.90 : x
  2. Step 2: Convert to fraction form
    75,209.38/112,799.50 = 28,465.90/x
  3. Step 3: Cross multiply
    75,209.38x = 112,799.50 × 28,465.90
  4. Step 4: Simplify right side
    75,209.38x = 3,210,939,287.05
  5. Step 5: Solve for x
    x = 3,210,939,287.05/75,209.38
  6. Step 6: Final answer
    x = 42,693.34

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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.