Home / 54,678.41-81,988.46-28,317.77

Finding the Fourth Proportional to 54,678.41, 81,988.46 and 28,317.77

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Solution

The fourth proportional to 54,678.41, 81,988.46 and 28,317.77 is: 42,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,678.41 : 81,988.46 = 28,317.77 : x
  2. Step 2: Convert to fraction form
    54,678.41/81,988.46 = 28,317.77/x
  3. Step 3: Cross multiply
    54,678.41x = 81,988.46 × 28,317.77
  4. Step 4: Simplify right side
    54,678.41x = 2,321,730,211.35
  5. Step 5: Solve for x
    x = 2,321,730,211.35/54,678.41
  6. Step 6: Final answer
    x = 42,461.55

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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.