Home / 89,712.21-134,544.02-45,364.71

Finding the Fourth Proportional to 89,712.21, 134,544.02 and 45,364.71

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Solution

The fourth proportional to 89,712.21, 134,544.02 and 45,364.71 is: 68,034.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,712.21 : 134,544.02 = 45,364.71 : x
  2. Step 2: Convert to fraction form
    89,712.21/134,544.02 = 45,364.71/x
  3. Step 3: Cross multiply
    89,712.21x = 134,544.02 × 45,364.71
  4. Step 4: Simplify right side
    89,712.21x = 6,103,550,449.53
  5. Step 5: Solve for x
    x = 6,103,550,449.53/89,712.21
  6. Step 6: Final answer
    x = 68,034.78

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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.