Home / 77,849.57-107,440.32-47,654.84

Finding the Fourth Proportional to 77,849.57, 107,440.32 and 47,654.84

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Solution

The fourth proportional to 77,849.57, 107,440.32 and 47,654.84 is: 65,768.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,849.57 : 107,440.32 = 47,654.84 : x
  2. Step 2: Convert to fraction form
    77,849.57/107,440.32 = 47,654.84/x
  3. Step 3: Cross multiply
    77,849.57x = 107,440.32 × 47,654.84
  4. Step 4: Simplify right side
    77,849.57x = 5,120,050,721.95
  5. Step 5: Solve for x
    x = 5,120,050,721.95/77,849.57
  6. Step 6: Final answer
    x = 65,768.52

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1.5x scale

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.