Home / 84,282.23-126,381.03-28,102.46

Finding the Fourth Proportional to 84,282.23, 126,381.03 and 28,102.46

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Solution

The fourth proportional to 84,282.23, 126,381.03 and 28,102.46 is: 42,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,282.23 : 126,381.03 = 28,102.46 : x
  2. Step 2: Convert to fraction form
    84,282.23/126,381.03 = 28,102.46/x
  3. Step 3: Cross multiply
    84,282.23x = 126,381.03 × 28,102.46
  4. Step 4: Simplify right side
    84,282.23x = 3,551,617,103.04
  5. Step 5: Solve for x
    x = 3,551,617,103.04/84,282.23
  6. Step 6: Final answer
    x = 42,139.57

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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.