Home / 51,427.40-77,125.98-21,845

Finding the Fourth Proportional to 51,427.40, 77,125.98 and 21,845

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Solution

The fourth proportional to 51,427.40, 77,125.98 and 21,845 is: 32,761.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,427.40 : 77,125.98 = 21,845 : x
  2. Step 2: Convert to fraction form
    51,427.40/77,125.98 = 21,845/x
  3. Step 3: Cross multiply
    51,427.40x = 77,125.98 × 21,845
  4. Step 4: Simplify right side
    51,427.40x = 1,684,817,033.10
  5. Step 5: Solve for x
    x = 1,684,817,033.10/51,427.40
  6. Step 6: Final answer
    x = 32,761.08

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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.