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Finding the Fourth Proportional to 64,164.30, 96,248.65 and 19,790.70

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Solution

The fourth proportional to 64,164.30, 96,248.65 and 19,790.70 is: 29,686.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,164.30 : 96,248.65 = 19,790.70 : x
  2. Step 2: Convert to fraction form
    64,164.30/96,248.65 = 19,790.70/x
  3. Step 3: Cross multiply
    64,164.30x = 96,248.65 × 19,790.70
  4. Step 4: Simplify right side
    64,164.30x = 1,904,828,157.56
  5. Step 5: Solve for x
    x = 1,904,828,157.56/64,164.30
  6. Step 6: Final answer
    x = 29,686.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.