Home / 71,269.24-98,350.08-39,438.12

Finding the Fourth Proportional to 71,269.24, 98,350.08 and 39,438.12

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Solution

The fourth proportional to 71,269.24, 98,350.08 and 39,438.12 is: 54,423.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,269.24 : 98,350.08 = 39,438.12 : x
  2. Step 2: Convert to fraction form
    71,269.24/98,350.08 = 39,438.12/x
  3. Step 3: Cross multiply
    71,269.24x = 98,350.08 × 39,438.12
  4. Step 4: Simplify right side
    71,269.24x = 3,878,742,257.05
  5. Step 5: Solve for x
    x = 3,878,742,257.05/71,269.24
  6. Step 6: Final answer
    x = 54,423.79

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1.5x scale

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.