Home / 84,209.36-126,327-28,030.20

Finding the Fourth Proportional to 84,209.36, 126,327 and 28,030.20

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Solution

The fourth proportional to 84,209.36, 126,327 and 28,030.20 is: 42,049.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,209.36 : 126,327 = 28,030.20 : x
  2. Step 2: Convert to fraction form
    84,209.36/126,327 = 28,030.20/x
  3. Step 3: Cross multiply
    84,209.36x = 126,327 × 28,030.20
  4. Step 4: Simplify right side
    84,209.36x = 3,540,971,075.40
  5. Step 5: Solve for x
    x = 3,540,971,075.40/84,209.36
  6. Step 6: Final answer
    x = 42,049.61

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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.