Home / 52,547.78-78,824.40-13,105.23

Finding the Fourth Proportional to 52,547.78, 78,824.40 and 13,105.23

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Solution

The fourth proportional to 52,547.78, 78,824.40 and 13,105.23 is: 19,658.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,547.78 : 78,824.40 = 13,105.23 : x
  2. Step 2: Convert to fraction form
    52,547.78/78,824.40 = 13,105.23/x
  3. Step 3: Cross multiply
    52,547.78x = 78,824.40 × 13,105.23
  4. Step 4: Simplify right side
    52,547.78x = 1,033,011,891.61
  5. Step 5: Solve for x
    x = 1,033,011,891.61/52,547.78
  6. Step 6: Final answer
    x = 19,658.53

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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.