Home / 52,781.46-72,838.44-28,909.65

Finding the Fourth Proportional to 52,781.46, 72,838.44 and 28,909.65

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Solution

The fourth proportional to 52,781.46, 72,838.44 and 28,909.65 is: 39,895.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,781.46 : 72,838.44 = 28,909.65 : x
  2. Step 2: Convert to fraction form
    52,781.46/72,838.44 = 28,909.65/x
  3. Step 3: Cross multiply
    52,781.46x = 72,838.44 × 28,909.65
  4. Step 4: Simplify right side
    52,781.46x = 2,105,733,806.95
  5. Step 5: Solve for x
    x = 2,105,733,806.95/52,781.46
  6. Step 6: Final answer
    x = 39,895.33

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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.