Home / 52,515.84-78,705.72-21,334.08

Finding the Fourth Proportional to 52,515.84, 78,705.72 and 21,334.08

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Solution

The fourth proportional to 52,515.84, 78,705.72 and 21,334.08 is: 31,973.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,515.84 : 78,705.72 = 21,334.08 : x
  2. Step 2: Convert to fraction form
    52,515.84/78,705.72 = 21,334.08/x
  3. Step 3: Cross multiply
    52,515.84x = 78,705.72 × 21,334.08
  4. Step 4: Simplify right side
    52,515.84x = 1,679,114,126.94
  5. Step 5: Solve for x
    x = 1,679,114,126.94/52,515.84
  6. Step 6: Final answer
    x = 31,973.48

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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.