Home / 105,377.69-145,423.33-57,634.11

Finding the Fourth Proportional to 105,377.69, 145,423.33 and 57,634.11

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Solution

The fourth proportional to 105,377.69, 145,423.33 and 57,634.11 is: 79,536.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,377.69 : 145,423.33 = 57,634.11 : x
  2. Step 2: Convert to fraction form
    105,377.69/145,423.33 = 57,634.11/x
  3. Step 3: Cross multiply
    105,377.69x = 145,423.33 × 57,634.11
  4. Step 4: Simplify right side
    105,377.69x = 8,381,344,053.70
  5. Step 5: Solve for x
    x = 8,381,344,053.70/105,377.69
  6. Step 6: Final answer
    x = 79,536.23

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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.