Home / 71,247.12-98,323.92-39,415.50

Finding the Fourth Proportional to 71,247.12, 98,323.92 and 39,415.50

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Solution

The fourth proportional to 71,247.12, 98,323.92 and 39,415.50 is: 54,394.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,247.12 : 98,323.92 = 39,415.50 : x
  2. Step 2: Convert to fraction form
    71,247.12/98,323.92 = 39,415.50/x
  3. Step 3: Cross multiply
    71,247.12x = 98,323.92 × 39,415.50
  4. Step 4: Simplify right side
    71,247.12x = 3,875,486,468.76
  5. Step 5: Solve for x
    x = 3,875,486,468.76/71,247.12
  6. Step 6: Final answer
    x = 54,394.99

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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.