Home / 64,209.20-96,313.80-40,938.80

Finding the Fourth Proportional to 64,209.20, 96,313.80 and 40,938.80

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Solution

The fourth proportional to 64,209.20, 96,313.80 and 40,938.80 is: 61,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,209.20 : 96,313.80 = 40,938.80 : x
  2. Step 2: Convert to fraction form
    64,209.20/96,313.80 = 40,938.80/x
  3. Step 3: Cross multiply
    64,209.20x = 96,313.80 × 40,938.80
  4. Step 4: Simplify right side
    64,209.20x = 3,942,971,395.44
  5. Step 5: Solve for x
    x = 3,942,971,395.44/64,209.20
  6. Step 6: Final answer
    x = 61,408.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.