Home / 78,824.46-108,780.05-43,016.77

Finding the Fourth Proportional to 78,824.46, 108,780.05 and 43,016.77

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Solution

The fourth proportional to 78,824.46, 108,780.05 and 43,016.77 is: 59,364.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,824.46 : 108,780.05 = 43,016.77 : x
  2. Step 2: Convert to fraction form
    78,824.46/108,780.05 = 43,016.77/x
  3. Step 3: Cross multiply
    78,824.46x = 108,780.05 × 43,016.77
  4. Step 4: Simplify right side
    78,824.46x = 4,679,366,176.35
  5. Step 5: Solve for x
    x = 4,679,366,176.35/78,824.46
  6. Step 6: Final answer
    x = 59,364.39

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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.