Home / 56,872.19-84,724.50-54,313.40

Finding the Fourth Proportional to 56,872.19, 84,724.50 and 54,313.40

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Solution

The fourth proportional to 56,872.19, 84,724.50 and 54,313.40 is: 80,912.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,872.19 : 84,724.50 = 54,313.40 : x
  2. Step 2: Convert to fraction form
    56,872.19/84,724.50 = 54,313.40/x
  3. Step 3: Cross multiply
    56,872.19x = 84,724.50 × 54,313.40
  4. Step 4: Simplify right side
    56,872.19x = 4,601,674,963.11
  5. Step 5: Solve for x
    x = 4,601,674,963.11/56,872.19
  6. Step 6: Final answer
    x = 80,912.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.