Home / 91,180.80-125,778.96-53,447.76

Finding the Fourth Proportional to 91,180.80, 125,778.96 and 53,447.76

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Solution

The fourth proportional to 91,180.80, 125,778.96 and 53,447.76 is: 73,728.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,180.80 : 125,778.96 = 53,447.76 : x
  2. Step 2: Convert to fraction form
    91,180.80/125,778.96 = 53,447.76/x
  3. Step 3: Cross multiply
    91,180.80x = 125,778.96 × 53,447.76
  4. Step 4: Simplify right side
    91,180.80x = 6,722,603,667.13
  5. Step 5: Solve for x
    x = 6,722,603,667.13/91,180.80
  6. Step 6: Final answer
    x = 73,728.28

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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.