Home / 45,108.86-67,644.79-13,507.79

Finding the Fourth Proportional to 45,108.86, 67,644.79 and 13,507.79

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Solution

The fourth proportional to 45,108.86, 67,644.79 and 13,507.79 is: 20,256.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,108.86 : 67,644.79 = 13,507.79 : x
  2. Step 2: Convert to fraction form
    45,108.86/67,644.79 = 13,507.79/x
  3. Step 3: Cross multiply
    45,108.86x = 67,644.79 × 13,507.79
  4. Step 4: Simplify right side
    45,108.86x = 913,731,245.92
  5. Step 5: Solve for x
    x = 913,731,245.92/45,108.86
  6. Step 6: Final answer
    x = 20,256.14

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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.