Home / 75,815.40-113,712.30-25,897.80

Finding the Fourth Proportional to 75,815.40, 113,712.30 and 25,897.80

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Solution

The fourth proportional to 75,815.40, 113,712.30 and 25,897.80 is: 38,843.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,815.40 : 113,712.30 = 25,897.80 : x
  2. Step 2: Convert to fraction form
    75,815.40/113,712.30 = 25,897.80/x
  3. Step 3: Cross multiply
    75,815.40x = 113,712.30 × 25,897.80
  4. Step 4: Simplify right side
    75,815.40x = 2,944,898,402.94
  5. Step 5: Solve for x
    x = 2,944,898,402.94/75,815.40
  6. Step 6: Final answer
    x = 38,843.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.