Home / 105,338.50-145,367.13-57,591.85

Finding the Fourth Proportional to 105,338.50, 145,367.13 and 57,591.85

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Solution

The fourth proportional to 105,338.50, 145,367.13 and 57,591.85 is: 79,476.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,338.50 : 145,367.13 = 57,591.85 : x
  2. Step 2: Convert to fraction form
    105,338.50/145,367.13 = 57,591.85/x
  3. Step 3: Cross multiply
    105,338.50x = 145,367.13 × 57,591.85
  4. Step 4: Simplify right side
    105,338.50x = 8,371,960,931.10
  5. Step 5: Solve for x
    x = 8,371,960,931.10/105,338.50
  6. Step 6: Final answer
    x = 79,476.75

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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.