Home / 77,907.17-107,494.53-47,690.12

Finding the Fourth Proportional to 77,907.17, 107,494.53 and 47,690.12

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Solution

The fourth proportional to 77,907.17, 107,494.53 and 47,690.12 is: 65,801.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,907.17 : 107,494.53 = 47,690.12 : x
  2. Step 2: Convert to fraction form
    77,907.17/107,494.53 = 47,690.12/x
  3. Step 3: Cross multiply
    77,907.17x = 107,494.53 × 47,690.12
  4. Step 4: Simplify right side
    77,907.17x = 5,126,426,497.57
  5. Step 5: Solve for x
    x = 5,126,426,497.57/77,907.17
  6. Step 6: Final answer
    x = 65,801.73

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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.