Home / 64,965.12-89,651.76-35,157.12

Finding the Fourth Proportional to 64,965.12, 89,651.76 and 35,157.12

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Solution

The fourth proportional to 64,965.12, 89,651.76 and 35,157.12 is: 48,516.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,965.12 : 89,651.76 = 35,157.12 : x
  2. Step 2: Convert to fraction form
    64,965.12/89,651.76 = 35,157.12/x
  3. Step 3: Cross multiply
    64,965.12x = 89,651.76 × 35,157.12
  4. Step 4: Simplify right side
    64,965.12x = 3,151,897,684.53
  5. Step 5: Solve for x
    x = 3,151,897,684.53/64,965.12
  6. Step 6: Final answer
    x = 48,516.77

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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.