Home / 84,576.24-126,883.08-28,418.40

Finding the Fourth Proportional to 84,576.24, 126,883.08 and 28,418.40

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Solution

The fourth proportional to 84,576.24, 126,883.08 and 28,418.40 is: 42,633.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,576.24 : 126,883.08 = 28,418.40 : x
  2. Step 2: Convert to fraction form
    84,576.24/126,883.08 = 28,418.40/x
  3. Step 3: Cross multiply
    84,576.24x = 126,883.08 × 28,418.40
  4. Step 4: Simplify right side
    84,576.24x = 3,605,814,120.67
  5. Step 5: Solve for x
    x = 3,605,814,120.67/84,576.24
  6. Step 6: Final answer
    x = 42,633.89

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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.