Home / 79,541.65-119,309.73-20,377.90

Finding the Fourth Proportional to 79,541.65, 119,309.73 and 20,377.90

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Solution

The fourth proportional to 79,541.65, 119,309.73 and 20,377.90 is: 30,566.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,541.65 : 119,309.73 = 20,377.90 : x
  2. Step 2: Convert to fraction form
    79,541.65/119,309.73 = 20,377.90/x
  3. Step 3: Cross multiply
    79,541.65x = 119,309.73 × 20,377.90
  4. Step 4: Simplify right side
    79,541.65x = 2,431,281,746.97
  5. Step 5: Solve for x
    x = 2,431,281,746.97/79,541.65
  6. Step 6: Final answer
    x = 30,566.15

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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.