Home / 75,401.46-103,828.77-64,087.38

Finding the Fourth Proportional to 75,401.46, 103,828.77 and 64,087.38

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Solution

The fourth proportional to 75,401.46, 103,828.77 and 64,087.38 is: 88,249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,401.46 : 103,828.77 = 64,087.38 : x
  2. Step 2: Convert to fraction form
    75,401.46/103,828.77 = 64,087.38/x
  3. Step 3: Cross multiply
    75,401.46x = 103,828.77 × 64,087.38
  4. Step 4: Simplify right side
    75,401.46x = 6,654,113,837.92
  5. Step 5: Solve for x
    x = 6,654,113,837.92/75,401.46
  6. Step 6: Final answer
    x = 88,249.14

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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.