Home / 77,559.12-107,043.15-47,361.95

Finding the Fourth Proportional to 77,559.12, 107,043.15 and 47,361.95

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Solution

The fourth proportional to 77,559.12, 107,043.15 and 47,361.95 is: 65,366.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,559.12 : 107,043.15 = 47,361.95 : x
  2. Step 2: Convert to fraction form
    77,559.12/107,043.15 = 47,361.95/x
  3. Step 3: Cross multiply
    77,559.12x = 107,043.15 × 47,361.95
  4. Step 4: Simplify right side
    77,559.12x = 5,069,771,782.93
  5. Step 5: Solve for x
    x = 5,069,771,782.93/77,559.12
  6. Step 6: Final answer
    x = 65,366.55

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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.