Home / 43,122.96-64,684.44-19,679.76

Finding the Fourth Proportional to 43,122.96, 64,684.44 and 19,679.76

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Solution

The fourth proportional to 43,122.96, 64,684.44 and 19,679.76 is: 29,519.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,122.96 : 64,684.44 = 19,679.76 : x
  2. Step 2: Convert to fraction form
    43,122.96/64,684.44 = 19,679.76/x
  3. Step 3: Cross multiply
    43,122.96x = 64,684.44 × 19,679.76
  4. Step 4: Simplify right side
    43,122.96x = 1,272,974,254.93
  5. Step 5: Solve for x
    x = 1,272,974,254.93/43,122.96
  6. Step 6: Final answer
    x = 29,519.64

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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.