Home / 51,387.86-77,100.69-36,712.28

Finding the Fourth Proportional to 51,387.86, 77,100.69 and 36,712.28

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Solution

The fourth proportional to 51,387.86, 77,100.69 and 36,712.28 is: 55,081.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,387.86 : 77,100.69 = 36,712.28 : x
  2. Step 2: Convert to fraction form
    51,387.86/77,100.69 = 36,712.28/x
  3. Step 3: Cross multiply
    51,387.86x = 77,100.69 × 36,712.28
  4. Step 4: Simplify right side
    51,387.86x = 2,830,542,119.47
  5. Step 5: Solve for x
    x = 2,830,542,119.47/51,387.86
  6. Step 6: Final answer
    x = 55,081.92

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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.