Home / 42,584.16-58,734-40,072.80

Finding the Fourth Proportional to 42,584.16, 58,734 and 40,072.80

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Solution

The fourth proportional to 42,584.16, 58,734 and 40,072.80 is: 55,270.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,584.16 : 58,734 = 40,072.80 : x
  2. Step 2: Convert to fraction form
    42,584.16/58,734 = 40,072.80/x
  3. Step 3: Cross multiply
    42,584.16x = 58,734 × 40,072.80
  4. Step 4: Simplify right side
    42,584.16x = 2,353,635,835.20
  5. Step 5: Solve for x
    x = 2,353,635,835.20/42,584.16
  6. Step 6: Final answer
    x = 55,270.22

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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.