Home / 45,136.12-67,718.02-20,197.16

Finding the Fourth Proportional to 45,136.12, 67,718.02 and 20,197.16

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Solution

The fourth proportional to 45,136.12, 67,718.02 and 20,197.16 is: 30,301.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,136.12 : 67,718.02 = 20,197.16 : x
  2. Step 2: Convert to fraction form
    45,136.12/67,718.02 = 20,197.16/x
  3. Step 3: Cross multiply
    45,136.12x = 67,718.02 × 20,197.16
  4. Step 4: Simplify right side
    45,136.12x = 1,367,711,684.82
  5. Step 5: Solve for x
    x = 1,367,711,684.82/45,136.12
  6. Step 6: Final answer
    x = 30,301.93

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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.