Home / 91,116.50-136,555.47-48,947.29

Finding the Fourth Proportional to 91,116.50, 136,555.47 and 48,947.29

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Solution

The fourth proportional to 91,116.50, 136,555.47 and 48,947.29 is: 73,356.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,116.50 : 136,555.47 = 48,947.29 : x
  2. Step 2: Convert to fraction form
    91,116.50/136,555.47 = 48,947.29/x
  3. Step 3: Cross multiply
    91,116.50x = 136,555.47 × 48,947.29
  4. Step 4: Simplify right side
    91,116.50x = 6,684,019,849.79
  5. Step 5: Solve for x
    x = 6,684,019,849.79/91,116.50
  6. Step 6: Final answer
    x = 73,356.86

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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.