Home / 99,315.65-137,058.31-53,996.69

Finding the Fourth Proportional to 99,315.65, 137,058.31 and 53,996.69

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Solution

The fourth proportional to 99,315.65, 137,058.31 and 53,996.69 is: 74,516.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,315.65 : 137,058.31 = 53,996.69 : x
  2. Step 2: Convert to fraction form
    99,315.65/137,058.31 = 53,996.69/x
  3. Step 3: Cross multiply
    99,315.65x = 137,058.31 × 53,996.69
  4. Step 4: Simplify right side
    99,315.65x = 7,400,694,121.72
  5. Step 5: Solve for x
    x = 7,400,694,121.72/99,315.65
  6. Step 6: Final answer
    x = 74,516.90

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1.5x scale

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.