Home / 53,040.13-79,573.56-19,761.28

Finding the Fourth Proportional to 53,040.13, 79,573.56 and 19,761.28

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Solution

The fourth proportional to 53,040.13, 79,573.56 and 19,761.28 is: 29,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,040.13 : 79,573.56 = 19,761.28 : x
  2. Step 2: Convert to fraction form
    53,040.13/79,573.56 = 19,761.28/x
  3. Step 3: Cross multiply
    53,040.13x = 79,573.56 × 19,761.28
  4. Step 4: Simplify right side
    53,040.13x = 1,572,475,399.76
  5. Step 5: Solve for x
    x = 1,572,475,399.76/53,040.13
  6. Step 6: Final answer
    x = 29,646.90

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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.