Home / 79,635.17-119,452.74-20,470.89

Finding the Fourth Proportional to 79,635.17, 119,452.74 and 20,470.89

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Solution

The fourth proportional to 79,635.17, 119,452.74 and 20,470.89 is: 30,706.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,635.17 : 119,452.74 = 20,470.89 : x
  2. Step 2: Convert to fraction form
    79,635.17/119,452.74 = 20,470.89/x
  3. Step 3: Cross multiply
    79,635.17x = 119,452.74 × 20,470.89
  4. Step 4: Simplify right side
    79,635.17x = 2,445,303,900.74
  5. Step 5: Solve for x
    x = 2,445,303,900.74/79,635.17
  6. Step 6: Final answer
    x = 30,706.33

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1.5x scale

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.