Home / 42,129.36-63,150.30-17,158.68

Finding the Fourth Proportional to 42,129.36, 63,150.30 and 17,158.68

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Solution

The fourth proportional to 42,129.36, 63,150.30 and 17,158.68 is: 25,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,129.36 : 63,150.30 = 17,158.68 : x
  2. Step 2: Convert to fraction form
    42,129.36/63,150.30 = 17,158.68/x
  3. Step 3: Cross multiply
    42,129.36x = 63,150.30 × 17,158.68
  4. Step 4: Simplify right side
    42,129.36x = 1,083,575,789.60
  5. Step 5: Solve for x
    x = 1,083,575,789.60/42,129.36
  6. Step 6: Final answer
    x = 25,720.21

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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.