Home / 84,168.26-126,276.10-28,013.40

Finding the Fourth Proportional to 84,168.26, 126,276.10 and 28,013.40

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Solution

The fourth proportional to 84,168.26, 126,276.10 and 28,013.40 is: 42,027.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,168.26 : 126,276.10 = 28,013.40 : x
  2. Step 2: Convert to fraction form
    84,168.26/126,276.10 = 28,013.40/x
  3. Step 3: Cross multiply
    84,168.26x = 126,276.10 × 28,013.40
  4. Step 4: Simplify right side
    84,168.26x = 3,537,422,899.74
  5. Step 5: Solve for x
    x = 3,537,422,899.74/84,168.26
  6. Step 6: Final answer
    x = 42,027.99

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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.