Home / 64,639.38-89,210.87-36,350.54

Finding the Fourth Proportional to 64,639.38, 89,210.87 and 36,350.54

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Solution

The fourth proportional to 64,639.38, 89,210.87 and 36,350.54 is: 50,168.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,639.38 : 89,210.87 = 36,350.54 : x
  2. Step 2: Convert to fraction form
    64,639.38/89,210.87 = 36,350.54/x
  3. Step 3: Cross multiply
    64,639.38x = 89,210.87 × 36,350.54
  4. Step 4: Simplify right side
    64,639.38x = 3,242,862,670.56
  5. Step 5: Solve for x
    x = 3,242,862,670.56/64,639.38
  6. Step 6: Final answer
    x = 50,168.53

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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.