Home / 77,814.80-107,380.02-45,986.66

Finding the Fourth Proportional to 77,814.80, 107,380.02 and 45,986.66

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Solution

The fourth proportional to 77,814.80, 107,380.02 and 45,986.66 is: 63,458.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,814.80 : 107,380.02 = 45,986.66 : x
  2. Step 2: Convert to fraction form
    77,814.80/107,380.02 = 45,986.66/x
  3. Step 3: Cross multiply
    77,814.80x = 107,380.02 × 45,986.66
  4. Step 4: Simplify right side
    77,814.80x = 4,938,048,470.53
  5. Step 5: Solve for x
    x = 4,938,048,470.53/77,814.80
  6. Step 6: Final answer
    x = 63,458.99

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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.