Home / 55,281.26-76,290.82-31,089.84

Finding the Fourth Proportional to 55,281.26, 76,290.82 and 31,089.84

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Solution

The fourth proportional to 55,281.26, 76,290.82 and 31,089.84 is: 42,905.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,281.26 : 76,290.82 = 31,089.84 : x
  2. Step 2: Convert to fraction form
    55,281.26/76,290.82 = 31,089.84/x
  3. Step 3: Cross multiply
    55,281.26x = 76,290.82 × 31,089.84
  4. Step 4: Simplify right side
    55,281.26x = 2,371,869,387.27
  5. Step 5: Solve for x
    x = 2,371,869,387.27/55,281.26
  6. Step 6: Final answer
    x = 42,905.49

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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.