Home / 72,716.12-100,314.56-42,502.71

Finding the Fourth Proportional to 72,716.12, 100,314.56 and 42,502.71

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Solution

The fourth proportional to 72,716.12, 100,314.56 and 42,502.71 is: 58,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,716.12 : 100,314.56 = 42,502.71 : x
  2. Step 2: Convert to fraction form
    72,716.12/100,314.56 = 42,502.71/x
  3. Step 3: Cross multiply
    72,716.12x = 100,314.56 × 42,502.71
  4. Step 4: Simplify right side
    72,716.12x = 4,263,640,652.46
  5. Step 5: Solve for x
    x = 4,263,640,652.46/72,716.12
  6. Step 6: Final answer
    x = 58,634.05

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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.