Home / 53,633.07-74,020.20-30,972

Finding the Fourth Proportional to 53,633.07, 74,020.20 and 30,972

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Solution

The fourth proportional to 53,633.07, 74,020.20 and 30,972 is: 42,745.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,633.07 : 74,020.20 = 30,972 : x
  2. Step 2: Convert to fraction form
    53,633.07/74,020.20 = 30,972/x
  3. Step 3: Cross multiply
    53,633.07x = 74,020.20 × 30,972
  4. Step 4: Simplify right side
    53,633.07x = 2,292,553,634.40
  5. Step 5: Solve for x
    x = 2,292,553,634.40/53,633.07
  6. Step 6: Final answer
    x = 42,745.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.