Home / 74,041.38-111,036.08-20,719.04

Finding the Fourth Proportional to 74,041.38, 111,036.08 and 20,719.04

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Solution

The fourth proportional to 74,041.38, 111,036.08 and 20,719.04 is: 31,071.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,041.38 : 111,036.08 = 20,719.04 : x
  2. Step 2: Convert to fraction form
    74,041.38/111,036.08 = 20,719.04/x
  3. Step 3: Cross multiply
    74,041.38x = 111,036.08 × 20,719.04
  4. Step 4: Simplify right side
    74,041.38x = 2,300,560,479.58
  5. Step 5: Solve for x
    x = 2,300,560,479.58/74,041.38
  6. Step 6: Final answer
    x = 31,071.28

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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.