Home / 45,229.86-67,762.98-18,888.66

Finding the Fourth Proportional to 45,229.86, 67,762.98 and 18,888.66

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Solution

The fourth proportional to 45,229.86, 67,762.98 and 18,888.66 is: 28,298.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,229.86 : 67,762.98 = 18,888.66 : x
  2. Step 2: Convert to fraction form
    45,229.86/67,762.98 = 18,888.66/x
  3. Step 3: Cross multiply
    45,229.86x = 67,762.98 × 18,888.66
  4. Step 4: Simplify right side
    45,229.86x = 1,279,951,889.81
  5. Step 5: Solve for x
    x = 1,279,951,889.81/45,229.86
  6. Step 6: Final answer
    x = 28,298.82

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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.