Home / 76,255.29-105,236.18-43,977.91

Finding the Fourth Proportional to 76,255.29, 105,236.18 and 43,977.91

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Solution

The fourth proportional to 76,255.29, 105,236.18 and 43,977.91 is: 60,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,255.29 : 105,236.18 = 43,977.91 : x
  2. Step 2: Convert to fraction form
    76,255.29/105,236.18 = 43,977.91/x
  3. Step 3: Cross multiply
    76,255.29x = 105,236.18 × 43,977.91
  4. Step 4: Simplify right side
    76,255.29x = 4,628,066,506.71
  5. Step 5: Solve for x
    x = 4,628,066,506.71/76,255.29
  6. Step 6: Final answer
    x = 60,691.74

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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.