Home / 77,778.18-107,327.52-43,775.82

Finding the Fourth Proportional to 77,778.18, 107,327.52 and 43,775.82

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Solution

The fourth proportional to 77,778.18, 107,327.52 and 43,775.82 is: 60,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,778.18 : 107,327.52 = 43,775.82 : x
  2. Step 2: Convert to fraction form
    77,778.18/107,327.52 = 43,775.82/x
  3. Step 3: Cross multiply
    77,778.18x = 107,327.52 × 43,775.82
  4. Step 4: Simplify right side
    77,778.18x = 4,698,350,196.57
  5. Step 5: Solve for x
    x = 4,698,350,196.57/77,778.18
  6. Step 6: Final answer
    x = 60,407.05

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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.