Home / 75,143.24-103,699.14-43,306.76

Finding the Fourth Proportional to 75,143.24, 103,699.14 and 43,306.76

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Solution

The fourth proportional to 75,143.24, 103,699.14 and 43,306.76 is: 59,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,143.24 : 103,699.14 = 43,306.76 : x
  2. Step 2: Convert to fraction form
    75,143.24/103,699.14 = 43,306.76/x
  3. Step 3: Cross multiply
    75,143.24x = 103,699.14 × 43,306.76
  4. Step 4: Simplify right side
    75,143.24x = 4,490,873,768.19
  5. Step 5: Solve for x
    x = 4,490,873,768.19/75,143.24
  6. Step 6: Final answer
    x = 59,764.18

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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.