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Finding the Fourth Proportional to 64,410.33, 88,887.18 and 38,913.15

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Solution

The fourth proportional to 64,410.33, 88,887.18 and 38,913.15 is: 53,700.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,410.33 : 88,887.18 = 38,913.15 : x
  2. Step 2: Convert to fraction form
    64,410.33/88,887.18 = 38,913.15/x
  3. Step 3: Cross multiply
    64,410.33x = 88,887.18 × 38,913.15
  4. Step 4: Simplify right side
    64,410.33x = 3,458,880,168.42
  5. Step 5: Solve for x
    x = 3,458,880,168.42/64,410.33
  6. Step 6: Final answer
    x = 53,700.71

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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.