Home / 63,781.35-95,685.77-19,411.68

Finding the Fourth Proportional to 63,781.35, 95,685.77 and 19,411.68

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Solution

The fourth proportional to 63,781.35, 95,685.77 and 19,411.68 is: 29,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,781.35 : 95,685.77 = 19,411.68 : x
  2. Step 2: Convert to fraction form
    63,781.35/95,685.77 = 19,411.68/x
  3. Step 3: Cross multiply
    63,781.35x = 95,685.77 × 19,411.68
  4. Step 4: Simplify right side
    63,781.35x = 1,857,421,547.79
  5. Step 5: Solve for x
    x = 1,857,421,547.79/63,781.35
  6. Step 6: Final answer
    x = 29,121.70

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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.