Home / 65,444.31-90,310.62-39,993.24

Finding the Fourth Proportional to 65,444.31, 90,310.62 and 39,993.24

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Solution

The fourth proportional to 65,444.31, 90,310.62 and 39,993.24 is: 55,189.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,444.31 : 90,310.62 = 39,993.24 : x
  2. Step 2: Convert to fraction form
    65,444.31/90,310.62 = 39,993.24/x
  3. Step 3: Cross multiply
    65,444.31x = 90,310.62 × 39,993.24
  4. Step 4: Simplify right side
    65,444.31x = 3,611,814,300.21
  5. Step 5: Solve for x
    x = 3,611,814,300.21/65,444.31
  6. Step 6: Final answer
    x = 55,189.13

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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.