Home / 99,305.70-137,044.53-53,986.72

Finding the Fourth Proportional to 99,305.70, 137,044.53 and 53,986.72

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Solution

The fourth proportional to 99,305.70, 137,044.53 and 53,986.72 is: 74,503.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,305.70 : 137,044.53 = 53,986.72 : x
  2. Step 2: Convert to fraction form
    99,305.70/137,044.53 = 53,986.72/x
  3. Step 3: Cross multiply
    99,305.70x = 137,044.53 × 53,986.72
  4. Step 4: Simplify right side
    99,305.70x = 7,398,584,668.64
  5. Step 5: Solve for x
    x = 7,398,584,668.64/99,305.70
  6. Step 6: Final answer
    x = 74,503.12

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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.