Home / 61,017.05-91,590.28-54,042.35

Finding the Fourth Proportional to 61,017.05, 91,590.28 and 54,042.35

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Solution

The fourth proportional to 61,017.05, 91,590.28 and 54,042.35 is: 81,120.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,017.05 : 91,590.28 = 54,042.35 : x
  2. Step 2: Convert to fraction form
    61,017.05/91,590.28 = 54,042.35/x
  3. Step 3: Cross multiply
    61,017.05x = 91,590.28 × 54,042.35
  4. Step 4: Simplify right side
    61,017.05x = 4,949,753,240.19
  5. Step 5: Solve for x
    x = 4,949,753,240.19/61,017.05
  6. Step 6: Final answer
    x = 81,120.82

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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.