Home / 74,659.32-111,987.62-18,499.58

Finding the Fourth Proportional to 74,659.32, 111,987.62 and 18,499.58

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Solution

The fourth proportional to 74,659.32, 111,987.62 and 18,499.58 is: 27,749.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,659.32 : 111,987.62 = 18,499.58 : x
  2. Step 2: Convert to fraction form
    74,659.32/111,987.62 = 18,499.58/x
  3. Step 3: Cross multiply
    74,659.32x = 111,987.62 × 18,499.58
  4. Step 4: Simplify right side
    74,659.32x = 2,071,723,282.76
  5. Step 5: Solve for x
    x = 2,071,723,282.76/74,659.32
  6. Step 6: Final answer
    x = 27,749.02

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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.