Home / 71,686.08-98,927.94-39,422.04

Finding the Fourth Proportional to 71,686.08, 98,927.94 and 39,422.04

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Solution

The fourth proportional to 71,686.08, 98,927.94 and 39,422.04 is: 54,403.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,686.08 : 98,927.94 = 39,422.04 : x
  2. Step 2: Convert to fraction form
    71,686.08/98,927.94 = 39,422.04/x
  3. Step 3: Cross multiply
    71,686.08x = 98,927.94 × 39,422.04
  4. Step 4: Simplify right side
    71,686.08x = 3,899,941,207.80
  5. Step 5: Solve for x
    x = 3,899,941,207.80/71,686.08
  6. Step 6: Final answer
    x = 54,403.05

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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.