Home / 78,936.13-108,931.80-44,942.86

Finding the Fourth Proportional to 78,936.13, 108,931.80 and 44,942.86

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Solution

The fourth proportional to 78,936.13, 108,931.80 and 44,942.86 is: 62,021.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,936.13 : 108,931.80 = 44,942.86 : x
  2. Step 2: Convert to fraction form
    78,936.13/108,931.80 = 44,942.86/x
  3. Step 3: Cross multiply
    78,936.13x = 108,931.80 × 44,942.86
  4. Step 4: Simplify right side
    78,936.13x = 4,895,706,636.95
  5. Step 5: Solve for x
    x = 4,895,706,636.95/78,936.13
  6. Step 6: Final answer
    x = 62,021.11

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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.