Home / 71,140.61-98,174.00-39,309.23

Finding the Fourth Proportional to 71,140.61, 98,174.00 and 39,309.23

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Solution

The fourth proportional to 71,140.61, 98,174.00 and 39,309.23 is: 54,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,140.61 : 98,174.00 = 39,309.23 : x
  2. Step 2: Convert to fraction form
    71,140.61/98,174.00 = 39,309.23/x
  3. Step 3: Cross multiply
    71,140.61x = 98,174.00 × 39,309.23
  4. Step 4: Simplify right side
    71,140.61x = 3,859,143,953.42
  5. Step 5: Solve for x
    x = 3,859,143,953.42/71,140.61
  6. Step 6: Final answer
    x = 54,246.71

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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.