Home / 77,838.24-107,397-47,612.52

Finding the Fourth Proportional to 77,838.24, 107,397 and 47,612.52

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Solution

The fourth proportional to 77,838.24, 107,397 and 47,612.52 is: 65,693.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,838.24 : 107,397 = 47,612.52 : x
  2. Step 2: Convert to fraction form
    77,838.24/107,397 = 47,612.52/x
  3. Step 3: Cross multiply
    77,838.24x = 107,397 × 47,612.52
  4. Step 4: Simplify right side
    77,838.24x = 5,113,441,810.44
  5. Step 5: Solve for x
    x = 5,113,441,810.44/77,838.24
  6. Step 6: Final answer
    x = 65,693.18

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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.