Home / 78,780.16-108,725.81-44,793.74

Finding the Fourth Proportional to 78,780.16, 108,725.81 and 44,793.74

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Solution

The fourth proportional to 78,780.16, 108,725.81 and 44,793.74 is: 61,820.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,780.16 : 108,725.81 = 44,793.74 : x
  2. Step 2: Convert to fraction form
    78,780.16/108,725.81 = 44,793.74/x
  3. Step 3: Cross multiply
    78,780.16x = 108,725.81 × 44,793.74
  4. Step 4: Simplify right side
    78,780.16x = 4,870,234,896.83
  5. Step 5: Solve for x
    x = 4,870,234,896.83/78,780.16
  6. Step 6: Final answer
    x = 61,820.58

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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.