Home / 53,142.73-79,715.30-19,844.63

Finding the Fourth Proportional to 53,142.73, 79,715.30 and 19,844.63

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Solution

The fourth proportional to 53,142.73, 79,715.30 and 19,844.63 is: 29,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,142.73 : 79,715.30 = 19,844.63 : x
  2. Step 2: Convert to fraction form
    53,142.73/79,715.30 = 19,844.63/x
  3. Step 3: Cross multiply
    53,142.73x = 79,715.30 × 19,844.63
  4. Step 4: Simplify right side
    53,142.73x = 1,581,920,785.22
  5. Step 5: Solve for x
    x = 1,581,920,785.22/53,142.73
  6. Step 6: Final answer
    x = 29,767.40

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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.