Home / 89,746.80-134,729.55-45,350.70

Finding the Fourth Proportional to 89,746.80, 134,729.55 and 45,350.70

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Solution

The fourth proportional to 89,746.80, 134,729.55 and 45,350.70 is: 68,081.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,746.80 : 134,729.55 = 45,350.70 : x
  2. Step 2: Convert to fraction form
    89,746.80/134,729.55 = 45,350.70/x
  3. Step 3: Cross multiply
    89,746.80x = 134,729.55 × 45,350.70
  4. Step 4: Simplify right side
    89,746.80x = 6,110,079,403.19
  5. Step 5: Solve for x
    x = 6,110,079,403.19/89,746.80
  6. Step 6: Final answer
    x = 68,081.31

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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.