Home / 75,180.86-112,727.56-28,437.38

Finding the Fourth Proportional to 75,180.86, 112,727.56 and 28,437.38

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Solution

The fourth proportional to 75,180.86, 112,727.56 and 28,437.38 is: 42,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,180.86 : 112,727.56 = 28,437.38 : x
  2. Step 2: Convert to fraction form
    75,180.86/112,727.56 = 28,437.38/x
  3. Step 3: Cross multiply
    75,180.86x = 112,727.56 × 28,437.38
  4. Step 4: Simplify right side
    75,180.86x = 3,205,676,460.19
  5. Step 5: Solve for x
    x = 3,205,676,460.19/75,180.86
  6. Step 6: Final answer
    x = 42,639.53

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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.