Home / 81,219.66-112,079.85-44,918.72

Finding the Fourth Proportional to 81,219.66, 112,079.85 and 44,918.72

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Solution

The fourth proportional to 81,219.66, 112,079.85 and 44,918.72 is: 61,986.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,219.66 : 112,079.85 = 44,918.72 : x
  2. Step 2: Convert to fraction form
    81,219.66/112,079.85 = 44,918.72/x
  3. Step 3: Cross multiply
    81,219.66x = 112,079.85 × 44,918.72
  4. Step 4: Simplify right side
    81,219.66x = 5,034,483,343.91
  5. Step 5: Solve for x
    x = 5,034,483,343.91/81,219.66
  6. Step 6: Final answer
    x = 61,986.02

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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.