Home / 78,910.46-108,898.77-43,101.06

Finding the Fourth Proportional to 78,910.46, 108,898.77 and 43,101.06

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Solution

The fourth proportional to 78,910.46, 108,898.77 and 43,101.06 is: 59,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,910.46 : 108,898.77 = 43,101.06 : x
  2. Step 2: Convert to fraction form
    78,910.46/108,898.77 = 43,101.06/x
  3. Step 3: Cross multiply
    78,910.46x = 108,898.77 × 43,101.06
  4. Step 4: Simplify right side
    78,910.46x = 4,693,652,419.70
  5. Step 5: Solve for x
    x = 4,693,652,419.70/78,910.46
  6. Step 6: Final answer
    x = 59,480.74

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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.