Home / 51,901.25-77,839.91-20,312.06

Finding the Fourth Proportional to 51,901.25, 77,839.91 and 20,312.06

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Solution

The fourth proportional to 51,901.25, 77,839.91 and 20,312.06 is: 30,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,901.25 : 77,839.91 = 20,312.06 : x
  2. Step 2: Convert to fraction form
    51,901.25/77,839.91 = 20,312.06/x
  3. Step 3: Cross multiply
    51,901.25x = 77,839.91 × 20,312.06
  4. Step 4: Simplify right side
    51,901.25x = 1,581,088,431.55
  5. Step 5: Solve for x
    x = 1,581,088,431.55/51,901.25
  6. Step 6: Final answer
    x = 30,463.40

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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.