Home / 49,389.96-68,162.40-28,170.12

Finding the Fourth Proportional to 49,389.96, 68,162.40 and 28,170.12

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Solution

The fourth proportional to 49,389.96, 68,162.40 and 28,170.12 is: 38,877.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,389.96 : 68,162.40 = 28,170.12 : x
  2. Step 2: Convert to fraction form
    49,389.96/68,162.40 = 28,170.12/x
  3. Step 3: Cross multiply
    49,389.96x = 68,162.40 × 28,170.12
  4. Step 4: Simplify right side
    49,389.96x = 1,920,142,987.49
  5. Step 5: Solve for x
    x = 1,920,142,987.49/49,389.96
  6. Step 6: Final answer
    x = 38,877.19

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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.