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Finding the Fourth Proportional to 64,168.34, 88,555.67 and 38,682.79

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Solution

The fourth proportional to 64,168.34, 88,555.67 and 38,682.79 is: 53,384.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,168.34 : 88,555.67 = 38,682.79 : x
  2. Step 2: Convert to fraction form
    64,168.34/88,555.67 = 38,682.79/x
  3. Step 3: Cross multiply
    64,168.34x = 88,555.67 × 38,682.79
  4. Step 4: Simplify right side
    64,168.34x = 3,425,580,385.92
  5. Step 5: Solve for x
    x = 3,425,580,385.92/64,168.34
  6. Step 6: Final answer
    x = 53,384.28

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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.