Home / 74,159.28-111,237.74-17,999.85

Finding the Fourth Proportional to 74,159.28, 111,237.74 and 17,999.85

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Solution

The fourth proportional to 74,159.28, 111,237.74 and 17,999.85 is: 26,999.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,159.28 : 111,237.74 = 17,999.85 : x
  2. Step 2: Convert to fraction form
    74,159.28/111,237.74 = 17,999.85/x
  3. Step 3: Cross multiply
    74,159.28x = 111,237.74 × 17,999.85
  4. Step 4: Simplify right side
    74,159.28x = 2,002,262,544.34
  5. Step 5: Solve for x
    x = 2,002,262,544.34/74,159.28
  6. Step 6: Final answer
    x = 26,999.49

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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.