Home / 89,340.57-133,332.35-85,723.92

Finding the Fourth Proportional to 89,340.57, 133,332.35 and 85,723.92

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Solution

The fourth proportional to 89,340.57, 133,332.35 and 85,723.92 is: 127,934.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,340.57 : 133,332.35 = 85,723.92 : x
  2. Step 2: Convert to fraction form
    89,340.57/133,332.35 = 85,723.92/x
  3. Step 3: Cross multiply
    89,340.57x = 133,332.35 × 85,723.92
  4. Step 4: Simplify right side
    89,340.57x = 11,429,771,276.19
  5. Step 5: Solve for x
    x = 11,429,771,276.19/89,340.57
  6. Step 6: Final answer
    x = 127,934.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.