Home / 91,331.87-125,956.29-57,343.50

Finding the Fourth Proportional to 91,331.87, 125,956.29 and 57,343.50

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Solution

The fourth proportional to 91,331.87, 125,956.29 and 57,343.50 is: 79,082.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,331.87 : 125,956.29 = 57,343.50 : x
  2. Step 2: Convert to fraction form
    91,331.87/125,956.29 = 57,343.50/x
  3. Step 3: Cross multiply
    91,331.87x = 125,956.29 × 57,343.50
  4. Step 4: Simplify right side
    91,331.87x = 7,222,774,515.62
  5. Step 5: Solve for x
    x = 7,222,774,515.62/91,331.87
  6. Step 6: Final answer
    x = 79,082.74

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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.