Home / 91,166.31-136,747.85-28,836.81

Finding the Fourth Proportional to 91,166.31, 136,747.85 and 28,836.81

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Solution

The fourth proportional to 91,166.31, 136,747.85 and 28,836.81 is: 43,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,166.31 : 136,747.85 = 28,836.81 : x
  2. Step 2: Convert to fraction form
    91,166.31/136,747.85 = 28,836.81/x
  3. Step 3: Cross multiply
    91,166.31x = 136,747.85 × 28,836.81
  4. Step 4: Simplify right side
    91,166.31x = 3,943,371,624.17
  5. Step 5: Solve for x
    x = 3,943,371,624.17/91,166.31
  6. Step 6: Final answer
    x = 43,254.70

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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.