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Finding the Fourth Proportional to 72,006.30, 108,009.45 and 63,695.70

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Solution

The fourth proportional to 72,006.30, 108,009.45 and 63,695.70 is: 95,543.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006.30 : 108,009.45 = 63,695.70 : x
  2. Step 2: Convert to fraction form
    72,006.30/108,009.45 = 63,695.70/x
  3. Step 3: Cross multiply
    72,006.30x = 108,009.45 × 63,695.70
  4. Step 4: Simplify right side
    72,006.30x = 6,879,737,524.37
  5. Step 5: Solve for x
    x = 6,879,737,524.37/72,006.30
  6. Step 6: Final answer
    x = 95,543.55

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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.