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Finding the Fourth Proportional to 64,197.64, 88,555.62 and 38,686.60

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Solution

The fourth proportional to 64,197.64, 88,555.62 and 38,686.60 is: 53,365.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,197.64 : 88,555.62 = 38,686.60 : x
  2. Step 2: Convert to fraction form
    64,197.64/88,555.62 = 38,686.60/x
  3. Step 3: Cross multiply
    64,197.64x = 88,555.62 × 38,686.60
  4. Step 4: Simplify right side
    64,197.64x = 3,425,915,848.69
  5. Step 5: Solve for x
    x = 3,425,915,848.69/64,197.64
  6. Step 6: Final answer
    x = 53,365.14

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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.