Home / 84,209.86-126,327.75-28,030.70

Finding the Fourth Proportional to 84,209.86, 126,327.75 and 28,030.70

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Solution

The fourth proportional to 84,209.86, 126,327.75 and 28,030.70 is: 42,050.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,209.86 : 126,327.75 = 28,030.70 : x
  2. Step 2: Convert to fraction form
    84,209.86/126,327.75 = 28,030.70/x
  3. Step 3: Cross multiply
    84,209.86x = 126,327.75 × 28,030.70
  4. Step 4: Simplify right side
    84,209.86x = 3,541,055,261.93
  5. Step 5: Solve for x
    x = 3,541,055,261.93/84,209.86
  6. Step 6: Final answer
    x = 42,050.36

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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.