Home / 84,469.77-126,728.58-42,298.95

Finding the Fourth Proportional to 84,469.77, 126,728.58 and 42,298.95

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Solution

The fourth proportional to 84,469.77, 126,728.58 and 42,298.95 is: 63,460.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,469.77 : 126,728.58 = 42,298.95 : x
  2. Step 2: Convert to fraction form
    84,469.77/126,728.58 = 42,298.95/x
  3. Step 3: Cross multiply
    84,469.77x = 126,728.58 × 42,298.95
  4. Step 4: Simplify right side
    84,469.77x = 5,360,485,868.99
  5. Step 5: Solve for x
    x = 5,360,485,868.99/84,469.77
  6. Step 6: Final answer
    x = 63,460.41

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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.