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Finding the Fourth Proportional to 51,482.40, 77,252.40 and 21,895.20

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Solution

The fourth proportional to 51,482.40, 77,252.40 and 21,895.20 is: 32,855.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,482.40 : 77,252.40 = 21,895.20 : x
  2. Step 2: Convert to fraction form
    51,482.40/77,252.40 = 21,895.20/x
  3. Step 3: Cross multiply
    51,482.40x = 77,252.40 × 21,895.20
  4. Step 4: Simplify right side
    51,482.40x = 1,691,456,748.48
  5. Step 5: Solve for x
    x = 1,691,456,748.48/51,482.40
  6. Step 6: Final answer
    x = 32,855.05

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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.