Home / 73,036.40-109,553.28-20,445.08

Finding the Fourth Proportional to 73,036.40, 109,553.28 and 20,445.08

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Solution

The fourth proportional to 73,036.40, 109,553.28 and 20,445.08 is: 30,667.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,036.40 : 109,553.28 = 20,445.08 : x
  2. Step 2: Convert to fraction form
    73,036.40/109,553.28 = 20,445.08/x
  3. Step 3: Cross multiply
    73,036.40x = 109,553.28 × 20,445.08
  4. Step 4: Simplify right side
    73,036.40x = 2,239,825,573.86
  5. Step 5: Solve for x
    x = 2,239,825,573.86/73,036.40
  6. Step 6: Final answer
    x = 30,667.25

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1.5x scale

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.