Home / 42,117.48-63,175.62-12,132.42

Finding the Fourth Proportional to 42,117.48, 63,175.62 and 12,132.42

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Solution

The fourth proportional to 42,117.48, 63,175.62 and 12,132.42 is: 18,198.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,117.48 : 63,175.62 = 12,132.42 : x
  2. Step 2: Convert to fraction form
    42,117.48/63,175.62 = 12,132.42/x
  3. Step 3: Cross multiply
    42,117.48x = 63,175.62 × 12,132.42
  4. Step 4: Simplify right side
    42,117.48x = 766,473,155.60
  5. Step 5: Solve for x
    x = 766,473,155.60/42,117.48
  6. Step 6: Final answer
    x = 18,198.46

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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.