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Finding the Fourth Proportional to 64,355.84, 88,781.04 and 40,495.68

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Solution

The fourth proportional to 64,355.84, 88,781.04 and 40,495.68 is: 55,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,355.84 : 88,781.04 = 40,495.68 : x
  2. Step 2: Convert to fraction form
    64,355.84/88,781.04 = 40,495.68/x
  3. Step 3: Cross multiply
    64,355.84x = 88,781.04 × 40,495.68
  4. Step 4: Simplify right side
    64,355.84x = 3,595,248,585.91
  5. Step 5: Solve for x
    x = 3,595,248,585.91/64,355.84
  6. Step 6: Final answer
    x = 55,865.15

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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.