Home / 32,781.12-49,159.63-11,715.47

Finding the Fourth Proportional to 32,781.12, 49,159.63 and 11,715.47

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Solution

The fourth proportional to 32,781.12, 49,159.63 and 11,715.47 is: 17,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,781.12 : 49,159.63 = 11,715.47 : x
  2. Step 2: Convert to fraction form
    32,781.12/49,159.63 = 11,715.47/x
  3. Step 3: Cross multiply
    32,781.12x = 49,159.63 × 11,715.47
  4. Step 4: Simplify right side
    32,781.12x = 575,928,057.77
  5. Step 5: Solve for x
    x = 575,928,057.77/32,781.12
  6. Step 6: Final answer
    x = 17,568.89

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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.