Home / 64,693.08-89,278.20-36,399.78

Finding the Fourth Proportional to 64,693.08, 89,278.20 and 36,399.78

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Solution

The fourth proportional to 64,693.08, 89,278.20 and 36,399.78 is: 50,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,693.08 : 89,278.20 = 36,399.78 : x
  2. Step 2: Convert to fraction form
    64,693.08/89,278.20 = 36,399.78/x
  3. Step 3: Cross multiply
    64,693.08x = 89,278.20 × 36,399.78
  4. Step 4: Simplify right side
    64,693.08x = 3,249,706,838.80
  5. Step 5: Solve for x
    x = 3,249,706,838.80/64,693.08
  6. Step 6: Final answer
    x = 50,232.68

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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.