Home / 78,096.06-117,149.22-31,342.86

Finding the Fourth Proportional to 78,096.06, 117,149.22 and 31,342.86

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Solution

The fourth proportional to 78,096.06, 117,149.22 and 31,342.86 is: 47,016.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,096.06 : 117,149.22 = 31,342.86 : x
  2. Step 2: Convert to fraction form
    78,096.06/117,149.22 = 31,342.86/x
  3. Step 3: Cross multiply
    78,096.06x = 117,149.22 × 31,342.86
  4. Step 4: Simplify right side
    78,096.06x = 3,671,791,601.57
  5. Step 5: Solve for x
    x = 3,671,791,601.57/78,096.06
  6. Step 6: Final answer
    x = 47,016.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.