Home / 67,148.61-100,587.75-31,074.21

Finding the Fourth Proportional to 67,148.61, 100,587.75 and 31,074.21

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Solution

The fourth proportional to 67,148.61, 100,587.75 and 31,074.21 is: 46,548.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,148.61 : 100,587.75 = 31,074.21 : x
  2. Step 2: Convert to fraction form
    67,148.61/100,587.75 = 31,074.21/x
  3. Step 3: Cross multiply
    67,148.61x = 100,587.75 × 31,074.21
  4. Step 4: Simplify right side
    67,148.61x = 3,125,684,866.93
  5. Step 5: Solve for x
    x = 3,125,684,866.93/67,148.61
  6. Step 6: Final answer
    x = 46,548.76

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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.