Home / 84,726.18-126,945.75-56,243.24

Finding the Fourth Proportional to 84,726.18, 126,945.75 and 56,243.24

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Solution

The fourth proportional to 84,726.18, 126,945.75 and 56,243.24 is: 84,269.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,726.18 : 126,945.75 = 56,243.24 : x
  2. Step 2: Convert to fraction form
    84,726.18/126,945.75 = 56,243.24/x
  3. Step 3: Cross multiply
    84,726.18x = 126,945.75 × 56,243.24
  4. Step 4: Simplify right side
    84,726.18x = 7,139,839,685.65
  5. Step 5: Solve for x
    x = 7,139,839,685.65/84,726.18
  6. Step 6: Final answer
    x = 84,269.58

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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.