Home / 78,975.65-108,986.38-44,987.29

Finding the Fourth Proportional to 78,975.65, 108,986.38 and 44,987.29

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Solution

The fourth proportional to 78,975.65, 108,986.38 and 44,987.29 is: 62,082.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,975.65 : 108,986.38 = 44,987.29 : x
  2. Step 2: Convert to fraction form
    78,975.65/108,986.38 = 44,987.29/x
  3. Step 3: Cross multiply
    78,975.65x = 108,986.38 × 44,987.29
  4. Step 4: Simplify right side
    78,975.65x = 4,903,001,498.18
  5. Step 5: Solve for x
    x = 4,903,001,498.18/78,975.65
  6. Step 6: Final answer
    x = 62,082.44

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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.