Home / 91,817.20-137,725.80-60,324.40

Finding the Fourth Proportional to 91,817.20, 137,725.80 and 60,324.40

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Solution

The fourth proportional to 91,817.20, 137,725.80 and 60,324.40 is: 90,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,817.20 : 137,725.80 = 60,324.40 : x
  2. Step 2: Convert to fraction form
    91,817.20/137,725.80 = 60,324.40/x
  3. Step 3: Cross multiply
    91,817.20x = 137,725.80 × 60,324.40
  4. Step 4: Simplify right side
    91,817.20x = 8,308,226,249.52
  5. Step 5: Solve for x
    x = 8,308,226,249.52/91,817.20
  6. Step 6: Final answer
    x = 90,486.60

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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.