Home / 71,510.20-98,684.08-39,684.22

Finding the Fourth Proportional to 71,510.20, 98,684.08 and 39,684.22

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Solution

The fourth proportional to 71,510.20, 98,684.08 and 39,684.22 is: 54,764.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,510.20 : 98,684.08 = 39,684.22 : x
  2. Step 2: Convert to fraction form
    71,510.20/98,684.08 = 39,684.22/x
  3. Step 3: Cross multiply
    71,510.20x = 98,684.08 × 39,684.22
  4. Step 4: Simplify right side
    71,510.20x = 3,916,201,173.62
  5. Step 5: Solve for x
    x = 3,916,201,173.62/71,510.20
  6. Step 6: Final answer
    x = 54,764.23

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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.