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Finding the Fourth Proportional to 89,613.73, 134,421 and 36,306.73

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Solution

The fourth proportional to 89,613.73, 134,421 and 36,306.73 is: 54,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,613.73 : 134,421 = 36,306.73 : x
  2. Step 2: Convert to fraction form
    89,613.73/134,421 = 36,306.73/x
  3. Step 3: Cross multiply
    89,613.73x = 134,421 × 36,306.73
  4. Step 4: Simplify right side
    89,613.73x = 4,880,386,953.33
  5. Step 5: Solve for x
    x = 4,880,386,953.33/89,613.73
  6. Step 6: Final answer
    x = 54,460.26

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Double scale
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1.5x scale

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.