Home / 91,624.40-137,436.60-54,760.40

Finding the Fourth Proportional to 91,624.40, 137,436.60 and 54,760.40

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Solution

The fourth proportional to 91,624.40, 137,436.60 and 54,760.40 is: 82,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,624.40 : 137,436.60 = 54,760.40 : x
  2. Step 2: Convert to fraction form
    91,624.40/137,436.60 = 54,760.40/x
  3. Step 3: Cross multiply
    91,624.40x = 137,436.60 × 54,760.40
  4. Step 4: Simplify right side
    91,624.40x = 7,526,083,190.64
  5. Step 5: Solve for x
    x = 7,526,083,190.64/91,624.40
  6. Step 6: Final answer
    x = 82,140.60

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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.