Home / 58,170.69-87,256.40-31,861.08

Finding the Fourth Proportional to 58,170.69, 87,256.40 and 31,861.08

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Solution

The fourth proportional to 58,170.69, 87,256.40 and 31,861.08 is: 47,791.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,170.69 : 87,256.40 = 31,861.08 : x
  2. Step 2: Convert to fraction form
    58,170.69/87,256.40 = 31,861.08/x
  3. Step 3: Cross multiply
    58,170.69x = 87,256.40 × 31,861.08
  4. Step 4: Simplify right side
    58,170.69x = 2,780,082,981.61
  5. Step 5: Solve for x
    x = 2,780,082,981.61/58,170.69
  6. Step 6: Final answer
    x = 47,791.82

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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.