Home / 82,359.12-113,613.84-55,136.28

Finding the Fourth Proportional to 82,359.12, 113,613.84 and 55,136.28

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Solution

The fourth proportional to 82,359.12, 113,613.84 and 55,136.28 is: 76,060.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,359.12 : 113,613.84 = 55,136.28 : x
  2. Step 2: Convert to fraction form
    82,359.12/113,613.84 = 55,136.28/x
  3. Step 3: Cross multiply
    82,359.12x = 113,613.84 × 55,136.28
  4. Step 4: Simplify right side
    82,359.12x = 6,264,244,494.12
  5. Step 5: Solve for x
    x = 6,264,244,494.12/82,359.12
  6. Step 6: Final answer
    x = 76,060.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.