Home / 56,429.75-77,882.97-38,518.22

Finding the Fourth Proportional to 56,429.75, 77,882.97 and 38,518.22

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Solution

The fourth proportional to 56,429.75, 77,882.97 and 38,518.22 is: 53,161.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,429.75 : 77,882.97 = 38,518.22 : x
  2. Step 2: Convert to fraction form
    56,429.75/77,882.97 = 38,518.22/x
  3. Step 3: Cross multiply
    56,429.75x = 77,882.97 × 38,518.22
  4. Step 4: Simplify right side
    56,429.75x = 2,999,912,983.30
  5. Step 5: Solve for x
    x = 2,999,912,983.30/56,429.75
  6. Step 6: Final answer
    x = 53,161.91

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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.