Home / 74,276.80-111,407.31-20,967.46

Finding the Fourth Proportional to 74,276.80, 111,407.31 and 20,967.46

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Solution

The fourth proportional to 74,276.80, 111,407.31 and 20,967.46 is: 31,448.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,276.80 : 111,407.31 = 20,967.46 : x
  2. Step 2: Convert to fraction form
    74,276.80/111,407.31 = 20,967.46/x
  3. Step 3: Cross multiply
    74,276.80x = 111,407.31 × 20,967.46
  4. Step 4: Simplify right side
    74,276.80x = 2,335,928,316.13
  5. Step 5: Solve for x
    x = 2,335,928,316.13/74,276.80
  6. Step 6: Final answer
    x = 31,448.96

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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.