Home / 87,852.30-121,115.67-55,570.86

Finding the Fourth Proportional to 87,852.30, 121,115.67 and 55,570.86

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Solution

The fourth proportional to 87,852.30, 121,115.67 and 55,570.86 is: 76,611.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,852.30 : 121,115.67 = 55,570.86 : x
  2. Step 2: Convert to fraction form
    87,852.30/121,115.67 = 55,570.86/x
  3. Step 3: Cross multiply
    87,852.30x = 121,115.67 × 55,570.86
  4. Step 4: Simplify right side
    87,852.30x = 6,730,501,941.38
  5. Step 5: Solve for x
    x = 6,730,501,941.38/87,852.30
  6. Step 6: Final answer
    x = 76,611.56

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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.