Home / 75,085.23-103,629.25-42,819.91

Finding the Fourth Proportional to 75,085.23, 103,629.25 and 42,819.91

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Solution

The fourth proportional to 75,085.23, 103,629.25 and 42,819.91 is: 59,098.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,085.23 : 103,629.25 = 42,819.91 : x
  2. Step 2: Convert to fraction form
    75,085.23/103,629.25 = 42,819.91/x
  3. Step 3: Cross multiply
    75,085.23x = 103,629.25 × 42,819.91
  4. Step 4: Simplify right side
    75,085.23x = 4,437,395,158.37
  5. Step 5: Solve for x
    x = 4,437,395,158.37/75,085.23
  6. Step 6: Final answer
    x = 59,098.11

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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.