Home / 75,153.10-103,687.68-43,317.58

Finding the Fourth Proportional to 75,153.10, 103,687.68 and 43,317.58

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Solution

The fourth proportional to 75,153.10, 103,687.68 and 43,317.58 is: 59,764.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,153.10 : 103,687.68 = 43,317.58 : x
  2. Step 2: Convert to fraction form
    75,153.10/103,687.68 = 43,317.58/x
  3. Step 3: Cross multiply
    75,153.10x = 103,687.68 × 43,317.58
  4. Step 4: Simplify right side
    75,153.10x = 4,491,499,373.41
  5. Step 5: Solve for x
    x = 4,491,499,373.41/75,153.10
  6. Step 6: Final answer
    x = 59,764.66

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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.