Home / 42,187.40-63,249.78-25,543.48

Finding the Fourth Proportional to 42,187.40, 63,249.78 and 25,543.48

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Solution

The fourth proportional to 42,187.40, 63,249.78 and 25,543.48 is: 38,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,187.40 : 63,249.78 = 25,543.48 : x
  2. Step 2: Convert to fraction form
    42,187.40/63,249.78 = 25,543.48/x
  3. Step 3: Cross multiply
    42,187.40x = 63,249.78 × 25,543.48
  4. Step 4: Simplify right side
    42,187.40x = 1,615,619,174.19
  5. Step 5: Solve for x
    x = 1,615,619,174.19/42,187.40
  6. Step 6: Final answer
    x = 38,296.25

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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.