Home / 75,169.30-103,683.69-48,345.76

Finding the Fourth Proportional to 75,169.30, 103,683.69 and 48,345.76

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Solution

The fourth proportional to 75,169.30, 103,683.69 and 48,345.76 is: 66,685.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,169.30 : 103,683.69 = 48,345.76 : x
  2. Step 2: Convert to fraction form
    75,169.30/103,683.69 = 48,345.76/x
  3. Step 3: Cross multiply
    75,169.30x = 103,683.69 × 48,345.76
  4. Step 4: Simplify right side
    75,169.30x = 5,012,666,792.65
  5. Step 5: Solve for x
    x = 5,012,666,792.65/75,169.30
  6. Step 6: Final answer
    x = 66,685.03

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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.