Home / 51,271.52-76,892.16-21,688.70

Finding the Fourth Proportional to 51,271.52, 76,892.16 and 21,688.70

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Solution

The fourth proportional to 51,271.52, 76,892.16 and 21,688.70 is: 32,526.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,271.52 : 76,892.16 = 21,688.70 : x
  2. Step 2: Convert to fraction form
    51,271.52/76,892.16 = 21,688.70/x
  3. Step 3: Cross multiply
    51,271.52x = 76,892.16 × 21,688.70
  4. Step 4: Simplify right side
    51,271.52x = 1,667,690,990.59
  5. Step 5: Solve for x
    x = 1,667,690,990.59/51,271.52
  6. Step 6: Final answer
    x = 32,526.65

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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.