Home / 81,244.60-112,116.76-45,434.20

Finding the Fourth Proportional to 81,244.60, 112,116.76 and 45,434.20

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Solution

The fourth proportional to 81,244.60, 112,116.76 and 45,434.20 is: 62,698.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,244.60 : 112,116.76 = 45,434.20 : x
  2. Step 2: Convert to fraction form
    81,244.60/112,116.76 = 45,434.20/x
  3. Step 3: Cross multiply
    81,244.60x = 112,116.76 × 45,434.20
  4. Step 4: Simplify right side
    81,244.60x = 5,093,935,297.19
  5. Step 5: Solve for x
    x = 5,093,935,297.19/81,244.60
  6. Step 6: Final answer
    x = 62,698.76

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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.