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Finding the Fourth Proportional to 64,354.68, 88,809.34 and 39,204.18

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Solution

The fourth proportional to 64,354.68, 88,809.34 and 39,204.18 is: 54,101.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,354.68 : 88,809.34 = 39,204.18 : x
  2. Step 2: Convert to fraction form
    64,354.68/88,809.34 = 39,204.18/x
  3. Step 3: Cross multiply
    64,354.68x = 88,809.34 × 39,204.18
  4. Step 4: Simplify right side
    64,354.68x = 3,481,697,351.04
  5. Step 5: Solve for x
    x = 3,481,697,351.04/64,354.68
  6. Step 6: Final answer
    x = 54,101.70

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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.