Home / 105,491.07-145,577.82-57,747.43

Finding the Fourth Proportional to 105,491.07, 145,577.82 and 57,747.43

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Solution

The fourth proportional to 105,491.07, 145,577.82 and 57,747.43 is: 79,691.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,491.07 : 145,577.82 = 57,747.43 : x
  2. Step 2: Convert to fraction form
    105,491.07/145,577.82 = 57,747.43/x
  3. Step 3: Cross multiply
    105,491.07x = 145,577.82 × 57,747.43
  4. Step 4: Simplify right side
    105,491.07x = 8,406,744,970.00
  5. Step 5: Solve for x
    x = 8,406,744,970.00/105,491.07
  6. Step 6: Final answer
    x = 79,691.53

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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.