Home / 91,574.30-126,453.05-57,639.48

Finding the Fourth Proportional to 91,574.30, 126,453.05 and 57,639.48

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Solution

The fourth proportional to 91,574.30, 126,453.05 and 57,639.48 is: 79,593.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,574.30 : 126,453.05 = 57,639.48 : x
  2. Step 2: Convert to fraction form
    91,574.30/126,453.05 = 57,639.48/x
  3. Step 3: Cross multiply
    91,574.30x = 126,453.05 × 57,639.48
  4. Step 4: Simplify right side
    91,574.30x = 7,288,687,758.22
  5. Step 5: Solve for x
    x = 7,288,687,758.22/91,574.30
  6. Step 6: Final answer
    x = 79,593.16

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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.