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Finding the Fourth Proportional to 64,899.84, 89,597.44 and 42,258.56

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Solution

The fourth proportional to 64,899.84, 89,597.44 and 42,258.56 is: 58,340.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,899.84 : 89,597.44 = 42,258.56 : x
  2. Step 2: Convert to fraction form
    64,899.84/89,597.44 = 42,258.56/x
  3. Step 3: Cross multiply
    64,899.84x = 89,597.44 × 42,258.56
  4. Step 4: Simplify right side
    64,899.84x = 3,786,258,794.09
  5. Step 5: Solve for x
    x = 3,786,258,794.09/64,899.84
  6. Step 6: Final answer
    x = 58,340.03

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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.