Home / 89,722.80-134,693.55-45,326.70

Finding the Fourth Proportional to 89,722.80, 134,693.55 and 45,326.70

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Solution

The fourth proportional to 89,722.80, 134,693.55 and 45,326.70 is: 68,045.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,722.80 : 134,693.55 = 45,326.70 : x
  2. Step 2: Convert to fraction form
    89,722.80/134,693.55 = 45,326.70/x
  3. Step 3: Cross multiply
    89,722.80x = 134,693.55 × 45,326.70
  4. Step 4: Simplify right side
    89,722.80x = 6,105,214,132.79
  5. Step 5: Solve for x
    x = 6,105,214,132.79/89,722.80
  6. Step 6: Final answer
    x = 68,045.29

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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.