Home / 57,122.22-78,829.71-31,971.66

Finding the Fourth Proportional to 57,122.22, 78,829.71 and 31,971.66

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Solution

The fourth proportional to 57,122.22, 78,829.71 and 31,971.66 is: 44,121.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,122.22 : 78,829.71 = 31,971.66 : x
  2. Step 2: Convert to fraction form
    57,122.22/78,829.71 = 31,971.66/x
  3. Step 3: Cross multiply
    57,122.22x = 78,829.71 × 31,971.66
  4. Step 4: Simplify right side
    57,122.22x = 2,520,316,686.02
  5. Step 5: Solve for x
    x = 2,520,316,686.02/57,122.22
  6. Step 6: Final answer
    x = 44,121.48

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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.