Home / 54,679.41-81,989.95-28,318.77

Finding the Fourth Proportional to 54,679.41, 81,989.95 and 28,318.77

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Solution

The fourth proportional to 54,679.41, 81,989.95 and 28,318.77 is: 42,463.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,679.41 : 81,989.95 = 28,318.77 : x
  2. Step 2: Convert to fraction form
    54,679.41/81,989.95 = 28,318.77/x
  3. Step 3: Cross multiply
    54,679.41x = 81,989.95 × 28,318.77
  4. Step 4: Simplify right side
    54,679.41x = 2,321,854,536.36
  5. Step 5: Solve for x
    x = 2,321,854,536.36/54,679.41
  6. Step 6: Final answer
    x = 42,463.05

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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.