Home / 77,947.80-107,565.35-49,282.89

Finding the Fourth Proportional to 77,947.80, 107,565.35 and 49,282.89

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Solution

The fourth proportional to 77,947.80, 107,565.35 and 49,282.89 is: 68,008.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,947.80 : 107,565.35 = 49,282.89 : x
  2. Step 2: Convert to fraction form
    77,947.80/107,565.35 = 49,282.89/x
  3. Step 3: Cross multiply
    77,947.80x = 107,565.35 × 49,282.89
  4. Step 4: Simplify right side
    77,947.80x = 5,301,131,065.45
  5. Step 5: Solve for x
    x = 5,301,131,065.45/77,947.80
  6. Step 6: Final answer
    x = 68,008.73

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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.