Home / 75,228.39-103,842.09-51,337.98

Finding the Fourth Proportional to 75,228.39, 103,842.09 and 51,337.98

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Solution

The fourth proportional to 75,228.39, 103,842.09 and 51,337.98 is: 70,864.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,228.39 : 103,842.09 = 51,337.98 : x
  2. Step 2: Convert to fraction form
    75,228.39/103,842.09 = 51,337.98/x
  3. Step 3: Cross multiply
    75,228.39x = 103,842.09 × 51,337.98
  4. Step 4: Simplify right side
    75,228.39x = 5,331,043,139.58
  5. Step 5: Solve for x
    x = 5,331,043,139.58/75,228.39
  6. Step 6: Final answer
    x = 70,864.78

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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.