Home / 79,621.07-119,452.13-57,157.79

Finding the Fourth Proportional to 79,621.07, 119,452.13 and 57,157.79

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Solution

The fourth proportional to 79,621.07, 119,452.13 and 57,157.79 is: 85,751.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,621.07 : 119,452.13 = 57,157.79 : x
  2. Step 2: Convert to fraction form
    79,621.07/119,452.13 = 57,157.79/x
  3. Step 3: Cross multiply
    79,621.07x = 119,452.13 × 57,157.79
  4. Step 4: Simplify right side
    79,621.07x = 6,827,619,761.59
  5. Step 5: Solve for x
    x = 6,827,619,761.59/79,621.07
  6. Step 6: Final answer
    x = 85,751.42

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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.