Home / 86,397.48-129,613.86-48,974.27

Finding the Fourth Proportional to 86,397.48, 129,613.86 and 48,974.27

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Solution

The fourth proportional to 86,397.48, 129,613.86 and 48,974.27 is: 73,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,397.48 : 129,613.86 = 48,974.27 : x
  2. Step 2: Convert to fraction form
    86,397.48/129,613.86 = 48,974.27/x
  3. Step 3: Cross multiply
    86,397.48x = 129,613.86 × 48,974.27
  4. Step 4: Simplify right side
    86,397.48x = 6,347,743,527.31
  5. Step 5: Solve for x
    x = 6,347,743,527.31/86,397.48
  6. Step 6: Final answer
    x = 73,471.40

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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.