Home / 56,987.87-78,640.96-33,112.66

Finding the Fourth Proportional to 56,987.87, 78,640.96 and 33,112.66

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Solution

The fourth proportional to 56,987.87, 78,640.96 and 33,112.66 is: 45,694.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,987.87 : 78,640.96 = 33,112.66 : x
  2. Step 2: Convert to fraction form
    56,987.87/78,640.96 = 33,112.66/x
  3. Step 3: Cross multiply
    56,987.87x = 78,640.96 × 33,112.66
  4. Step 4: Simplify right side
    56,987.87x = 2,604,011,204.99
  5. Step 5: Solve for x
    x = 2,604,011,204.99/56,987.87
  6. Step 6: Final answer
    x = 45,694.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.