Home / 55,207.59-76,186.49-31,008.59

Finding the Fourth Proportional to 55,207.59, 76,186.49 and 31,008.59

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Solution

The fourth proportional to 55,207.59, 76,186.49 and 31,008.59 is: 42,791.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,207.59 : 76,186.49 = 31,008.59 : x
  2. Step 2: Convert to fraction form
    55,207.59/76,186.49 = 31,008.59/x
  3. Step 3: Cross multiply
    55,207.59x = 76,186.49 × 31,008.59
  4. Step 4: Simplify right side
    55,207.59x = 2,362,435,381.67
  5. Step 5: Solve for x
    x = 2,362,435,381.67/55,207.59
  6. Step 6: Final answer
    x = 42,791.86

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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.