Home / 55,842.20-77,060.12-31,971.09

Finding the Fourth Proportional to 55,842.20, 77,060.12 and 31,971.09

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Solution

The fourth proportional to 55,842.20, 77,060.12 and 31,971.09 is: 44,118.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,842.20 : 77,060.12 = 31,971.09 : x
  2. Step 2: Convert to fraction form
    55,842.20/77,060.12 = 31,971.09/x
  3. Step 3: Cross multiply
    55,842.20x = 77,060.12 × 31,971.09
  4. Step 4: Simplify right side
    55,842.20x = 2,463,695,872.08
  5. Step 5: Solve for x
    x = 2,463,695,872.08/55,842.20
  6. Step 6: Final answer
    x = 44,118.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.