Home / 64,699.20-89,280.05-36,399.42

Finding the Fourth Proportional to 64,699.20, 89,280.05 and 36,399.42

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Solution

The fourth proportional to 64,699.20, 89,280.05 and 36,399.42 is: 50,228.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,699.20 : 89,280.05 = 36,399.42 : x
  2. Step 2: Convert to fraction form
    64,699.20/89,280.05 = 36,399.42/x
  3. Step 3: Cross multiply
    64,699.20x = 89,280.05 × 36,399.42
  4. Step 4: Simplify right side
    64,699.20x = 3,249,741,855.57
  5. Step 5: Solve for x
    x = 3,249,741,855.57/64,699.20
  6. Step 6: Final answer
    x = 50,228.47

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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.