Home / 69,501.65-103,358.38-67,287.31

Finding the Fourth Proportional to 69,501.65, 103,358.38 and 67,287.31

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Solution

The fourth proportional to 69,501.65, 103,358.38 and 67,287.31 is: 100,065.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,501.65 : 103,358.38 = 67,287.31 : x
  2. Step 2: Convert to fraction form
    69,501.65/103,358.38 = 67,287.31/x
  3. Step 3: Cross multiply
    69,501.65x = 103,358.38 × 67,287.31
  4. Step 4: Simplify right side
    69,501.65x = 6,954,707,055.71
  5. Step 5: Solve for x
    x = 6,954,707,055.71/69,501.65
  6. Step 6: Final answer
    x = 100,065.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.