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Finding the Fourth Proportional to 65,692.04, 98,522.70 and 21,307.40

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Solution

The fourth proportional to 65,692.04, 98,522.70 and 21,307.40 is: 31,956.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,692.04 : 98,522.70 = 21,307.40 : x
  2. Step 2: Convert to fraction form
    65,692.04/98,522.70 = 21,307.40/x
  3. Step 3: Cross multiply
    65,692.04x = 98,522.70 × 21,307.40
  4. Step 4: Simplify right side
    65,692.04x = 2,099,262,577.98
  5. Step 5: Solve for x
    x = 2,099,262,577.98/65,692.04
  6. Step 6: Final answer
    x = 31,956.12

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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.