Home / 84,270.51-126,373.57-28,099.85

Finding the Fourth Proportional to 84,270.51, 126,373.57 and 28,099.85

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Solution

The fourth proportional to 84,270.51, 126,373.57 and 28,099.85 is: 42,139.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,270.51 : 126,373.57 = 28,099.85 : x
  2. Step 2: Convert to fraction form
    84,270.51/126,373.57 = 28,099.85/x
  3. Step 3: Cross multiply
    84,270.51x = 126,373.57 × 28,099.85
  4. Step 4: Simplify right side
    84,270.51x = 3,551,077,658.85
  5. Step 5: Solve for x
    x = 3,551,077,658.85/84,270.51
  6. Step 6: Final answer
    x = 42,139.03

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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.