Home / 91,731.16-126,535.24-57,685.64

Finding the Fourth Proportional to 91,731.16, 126,535.24 and 57,685.64

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Solution

The fourth proportional to 91,731.16, 126,535.24 and 57,685.64 is: 79,572.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,731.16 : 126,535.24 = 57,685.64 : x
  2. Step 2: Convert to fraction form
    91,731.16/126,535.24 = 57,685.64/x
  3. Step 3: Cross multiply
    91,731.16x = 126,535.24 × 57,685.64
  4. Step 4: Simplify right side
    91,731.16x = 7,299,266,301.95
  5. Step 5: Solve for x
    x = 7,299,266,301.95/91,731.16
  6. Step 6: Final answer
    x = 79,572.38

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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.