Home / 67,412.12-101,104.28-31,858.32

Finding the Fourth Proportional to 67,412.12, 101,104.28 and 31,858.32

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Solution

The fourth proportional to 67,412.12, 101,104.28 and 31,858.32 is: 47,780.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,412.12 : 101,104.28 = 31,858.32 : x
  2. Step 2: Convert to fraction form
    67,412.12/101,104.28 = 31,858.32/x
  3. Step 3: Cross multiply
    67,412.12x = 101,104.28 × 31,858.32
  4. Step 4: Simplify right side
    67,412.12x = 3,221,012,346.32
  5. Step 5: Solve for x
    x = 3,221,012,346.32/67,412.12
  6. Step 6: Final answer
    x = 47,780.91

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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.