Home / 81,329.74-112,235.03-45,519.75

Finding the Fourth Proportional to 81,329.74, 112,235.03 and 45,519.75

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Solution

The fourth proportional to 81,329.74, 112,235.03 and 45,519.75 is: 62,817.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,329.74 : 112,235.03 = 45,519.75 : x
  2. Step 2: Convert to fraction form
    81,329.74/112,235.03 = 45,519.75/x
  3. Step 3: Cross multiply
    81,329.74x = 112,235.03 × 45,519.75
  4. Step 4: Simplify right side
    81,329.74x = 5,108,910,279.24
  5. Step 5: Solve for x
    x = 5,108,910,279.24/81,329.74
  6. Step 6: Final answer
    x = 62,817.25

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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.