Home / 84,619.49-126,896.42-45,155.07

Finding the Fourth Proportional to 84,619.49, 126,896.42 and 45,155.07

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Solution

The fourth proportional to 84,619.49, 126,896.42 and 45,155.07 is: 67,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,619.49 : 126,896.42 = 45,155.07 : x
  2. Step 2: Convert to fraction form
    84,619.49/126,896.42 = 45,155.07/x
  3. Step 3: Cross multiply
    84,619.49x = 126,896.42 × 45,155.07
  4. Step 4: Simplify right side
    84,619.49x = 5,730,016,840.74
  5. Step 5: Solve for x
    x = 5,730,016,840.74/84,619.49
  6. Step 6: Final answer
    x = 67,715.10

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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.