Home / 75,947.76-113,859.95-31,607.69

Finding the Fourth Proportional to 75,947.76, 113,859.95 and 31,607.69

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Solution

The fourth proportional to 75,947.76, 113,859.95 and 31,607.69 is: 47,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,947.76 : 113,859.95 = 31,607.69 : x
  2. Step 2: Convert to fraction form
    75,947.76/113,859.95 = 31,607.69/x
  3. Step 3: Cross multiply
    75,947.76x = 113,859.95 × 31,607.69
  4. Step 4: Simplify right side
    75,947.76x = 3,598,849,275.68
  5. Step 5: Solve for x
    x = 3,598,849,275.68/75,947.76
  6. Step 6: Final answer
    x = 47,385.85

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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.