Home / 77,131.95-115,693.07-24,579.15

Finding the Fourth Proportional to 77,131.95, 115,693.07 and 24,579.15

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Solution

The fourth proportional to 77,131.95, 115,693.07 and 24,579.15 is: 36,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,131.95 : 115,693.07 = 24,579.15 : x
  2. Step 2: Convert to fraction form
    77,131.95/115,693.07 = 24,579.15/x
  3. Step 3: Cross multiply
    77,131.95x = 115,693.07 × 24,579.15
  4. Step 4: Simplify right side
    77,131.95x = 2,843,637,198.59
  5. Step 5: Solve for x
    x = 2,843,637,198.59/77,131.95
  6. Step 6: Final answer
    x = 36,867.18

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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.