Home / 71,924.78-99,257.50-40,090.25

Finding the Fourth Proportional to 71,924.78, 99,257.50 and 40,090.25

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Solution

The fourth proportional to 71,924.78, 99,257.50 and 40,090.25 is: 55,325.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,924.78 : 99,257.50 = 40,090.25 : x
  2. Step 2: Convert to fraction form
    71,924.78/99,257.50 = 40,090.25/x
  3. Step 3: Cross multiply
    71,924.78x = 99,257.50 × 40,090.25
  4. Step 4: Simplify right side
    71,924.78x = 3,979,257,392.86
  5. Step 5: Solve for x
    x = 3,979,257,392.86/71,924.78
  6. Step 6: Final answer
    x = 55,325.27

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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.