Home / 90,548.42-124,942.21-52,301.89

Finding the Fourth Proportional to 90,548.42, 124,942.21 and 52,301.89

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Solution

The fourth proportional to 90,548.42, 124,942.21 and 52,301.89 is: 72,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,548.42 : 124,942.21 = 52,301.89 : x
  2. Step 2: Convert to fraction form
    90,548.42/124,942.21 = 52,301.89/x
  3. Step 3: Cross multiply
    90,548.42x = 124,942.21 × 52,301.89
  4. Step 4: Simplify right side
    90,548.42x = 6,534,713,723.78
  5. Step 5: Solve for x
    x = 6,534,713,723.78/90,548.42
  6. Step 6: Final answer
    x = 72,168.17

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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.