Home / 86,671.20-119,661.84-70,793.76

Finding the Fourth Proportional to 86,671.20, 119,661.84 and 70,793.76

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Solution

The fourth proportional to 86,671.20, 119,661.84 and 70,793.76 is: 97,740.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,671.20 : 119,661.84 = 70,793.76 : x
  2. Step 2: Convert to fraction form
    86,671.20/119,661.84 = 70,793.76/x
  3. Step 3: Cross multiply
    86,671.20x = 119,661.84 × 70,793.76
  4. Step 4: Simplify right side
    86,671.20x = 8,471,311,582.12
  5. Step 5: Solve for x
    x = 8,471,311,582.12/86,671.20
  6. Step 6: Final answer
    x = 97,740.79

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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.