Home / 43,108.39-64,678.38-18,154.72

Finding the Fourth Proportional to 43,108.39, 64,678.38 and 18,154.72

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Solution

The fourth proportional to 43,108.39, 64,678.38 and 18,154.72 is: 27,238.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,108.39 : 64,678.38 = 18,154.72 : x
  2. Step 2: Convert to fraction form
    43,108.39/64,678.38 = 18,154.72/x
  3. Step 3: Cross multiply
    43,108.39x = 64,678.38 × 18,154.72
  4. Step 4: Simplify right side
    43,108.39x = 1,174,217,878.95
  5. Step 5: Solve for x
    x = 1,174,217,878.95/43,108.39
  6. Step 6: Final answer
    x = 27,238.73

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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.