Home / 77,648.72-107,155.32-44,121.20

Finding the Fourth Proportional to 77,648.72, 107,155.32 and 44,121.20

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Solution

The fourth proportional to 77,648.72, 107,155.32 and 44,121.20 is: 60,887.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,648.72 : 107,155.32 = 44,121.20 : x
  2. Step 2: Convert to fraction form
    77,648.72/107,155.32 = 44,121.20/x
  3. Step 3: Cross multiply
    77,648.72x = 107,155.32 × 44,121.20
  4. Step 4: Simplify right side
    77,648.72x = 4,727,821,304.78
  5. Step 5: Solve for x
    x = 4,727,821,304.78/77,648.72
  6. Step 6: Final answer
    x = 60,887.31

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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.