Home / 77,003.10-115,545.13-54,657.98

Finding the Fourth Proportional to 77,003.10, 115,545.13 and 54,657.98

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Solution

The fourth proportional to 77,003.10, 115,545.13 and 54,657.98 is: 82,015.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,003.10 : 115,545.13 = 54,657.98 : x
  2. Step 2: Convert to fraction form
    77,003.10/115,545.13 = 54,657.98/x
  3. Step 3: Cross multiply
    77,003.10x = 115,545.13 × 54,657.98
  4. Step 4: Simplify right side
    77,003.10x = 6,315,463,404.64
  5. Step 5: Solve for x
    x = 6,315,463,404.64/77,003.10
  6. Step 6: Final answer
    x = 82,015.70

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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.