Home / 91,872.36-126,797.72-56,083.20

Finding the Fourth Proportional to 91,872.36, 126,797.72 and 56,083.20

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Solution

The fourth proportional to 91,872.36, 126,797.72 and 56,083.20 is: 77,403.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,872.36 : 126,797.72 = 56,083.20 : x
  2. Step 2: Convert to fraction form
    91,872.36/126,797.72 = 56,083.20/x
  3. Step 3: Cross multiply
    91,872.36x = 126,797.72 × 56,083.20
  4. Step 4: Simplify right side
    91,872.36x = 7,111,221,890.30
  5. Step 5: Solve for x
    x = 7,111,221,890.30/91,872.36
  6. Step 6: Final answer
    x = 77,403.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.