Home / 61,042.21-91,577.51-18,920.06

Finding the Fourth Proportional to 61,042.21, 91,577.51 and 18,920.06

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Solution

The fourth proportional to 61,042.21, 91,577.51 and 18,920.06 is: 28,384.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,042.21 : 91,577.51 = 18,920.06 : x
  2. Step 2: Convert to fraction form
    61,042.21/91,577.51 = 18,920.06/x
  3. Step 3: Cross multiply
    61,042.21x = 91,577.51 × 18,920.06
  4. Step 4: Simplify right side
    61,042.21x = 1,732,651,641.38
  5. Step 5: Solve for x
    x = 1,732,651,641.38/61,042.21
  6. Step 6: Final answer
    x = 28,384.49

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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.