Home / 70,161.12-105,176.06-25,775.96

Finding the Fourth Proportional to 70,161.12, 105,176.06 and 25,775.96

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Solution

The fourth proportional to 70,161.12, 105,176.06 and 25,775.96 is: 38,639.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,161.12 : 105,176.06 = 25,775.96 : x
  2. Step 2: Convert to fraction form
    70,161.12/105,176.06 = 25,775.96/x
  3. Step 3: Cross multiply
    70,161.12x = 105,176.06 × 25,775.96
  4. Step 4: Simplify right side
    70,161.12x = 2,711,013,260.76
  5. Step 5: Solve for x
    x = 2,711,013,260.76/70,161.12
  6. Step 6: Final answer
    x = 38,639.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.