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Finding the Fourth Proportional to 64,349.12, 88,807.64 and 38,868.14

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Solution

The fourth proportional to 64,349.12, 88,807.64 and 38,868.14 is: 53,641.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,349.12 : 88,807.64 = 38,868.14 : x
  2. Step 2: Convert to fraction form
    64,349.12/88,807.64 = 38,868.14/x
  3. Step 3: Cross multiply
    64,349.12x = 88,807.64 × 38,868.14
  4. Step 4: Simplify right side
    64,349.12x = 3,451,787,146.21
  5. Step 5: Solve for x
    x = 3,451,787,146.21/64,349.12
  6. Step 6: Final answer
    x = 53,641.56

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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.