Home / 51,981.90-77,857.65-40,257.10

Finding the Fourth Proportional to 51,981.90, 77,857.65 and 40,257.10

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Solution

The fourth proportional to 51,981.90, 77,857.65 and 40,257.10 is: 60,296.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,981.90 : 77,857.65 = 40,257.10 : x
  2. Step 2: Convert to fraction form
    51,981.90/77,857.65 = 40,257.10/x
  3. Step 3: Cross multiply
    51,981.90x = 77,857.65 × 40,257.10
  4. Step 4: Simplify right side
    51,981.90x = 3,134,323,201.82
  5. Step 5: Solve for x
    x = 3,134,323,201.82/51,981.90
  6. Step 6: Final answer
    x = 60,296.43

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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.