Home / 77,001.15-115,294.08-50,280.96

Finding the Fourth Proportional to 77,001.15, 115,294.08 and 50,280.96

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Solution

The fourth proportional to 77,001.15, 115,294.08 and 50,280.96 is: 75,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,001.15 : 115,294.08 = 50,280.96 : x
  2. Step 2: Convert to fraction form
    77,001.15/115,294.08 = 50,280.96/x
  3. Step 3: Cross multiply
    77,001.15x = 115,294.08 × 50,280.96
  4. Step 4: Simplify right side
    77,001.15x = 5,797,097,024.72
  5. Step 5: Solve for x
    x = 5,797,097,024.72/77,001.15
  6. Step 6: Final answer
    x = 75,285.85

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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.