Home / 91,724.85-126,526.59-57,679.47

Finding the Fourth Proportional to 91,724.85, 126,526.59 and 57,679.47

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Solution

The fourth proportional to 91,724.85, 126,526.59 and 57,679.47 is: 79,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,724.85 : 126,526.59 = 57,679.47 : x
  2. Step 2: Convert to fraction form
    91,724.85/126,526.59 = 57,679.47/x
  3. Step 3: Cross multiply
    91,724.85x = 126,526.59 × 57,679.47
  4. Step 4: Simplify right side
    91,724.85x = 7,297,986,652.11
  5. Step 5: Solve for x
    x = 7,297,986,652.11/91,724.85
  6. Step 6: Final answer
    x = 79,563.90

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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.