Home / 60,778.20-91,127.70-54,557.40

Finding the Fourth Proportional to 60,778.20, 91,127.70 and 54,557.40

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Solution

The fourth proportional to 60,778.20, 91,127.70 and 54,557.40 is: 81,800.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,778.20 : 91,127.70 = 54,557.40 : x
  2. Step 2: Convert to fraction form
    60,778.20/91,127.70 = 54,557.40/x
  3. Step 3: Cross multiply
    60,778.20x = 91,127.70 × 54,557.40
  4. Step 4: Simplify right side
    60,778.20x = 4,971,690,379.98
  5. Step 5: Solve for x
    x = 4,971,690,379.98/60,778.20
  6. Step 6: Final answer
    x = 81,800.55

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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.