Home / 77,946.18-107,540.24-47,699.97

Finding the Fourth Proportional to 77,946.18, 107,540.24 and 47,699.97

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Solution

The fourth proportional to 77,946.18, 107,540.24 and 47,699.97 is: 65,810.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,946.18 : 107,540.24 = 47,699.97 : x
  2. Step 2: Convert to fraction form
    77,946.18/107,540.24 = 47,699.97/x
  3. Step 3: Cross multiply
    77,946.18x = 107,540.24 × 47,699.97
  4. Step 4: Simplify right side
    77,946.18x = 5,129,665,983.29
  5. Step 5: Solve for x
    x = 5,129,665,983.29/77,946.18
  6. Step 6: Final answer
    x = 65,810.36

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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.