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Finding the Fourth Proportional to 65,360.80, 97,814.40 and 39,084.40

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Solution

The fourth proportional to 65,360.80, 97,814.40 and 39,084.40 is: 58,490.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,360.80 : 97,814.40 = 39,084.40 : x
  2. Step 2: Convert to fraction form
    65,360.80/97,814.40 = 39,084.40/x
  3. Step 3: Cross multiply
    65,360.80x = 97,814.40 × 39,084.40
  4. Step 4: Simplify right side
    65,360.80x = 3,823,017,135.36
  5. Step 5: Solve for x
    x = 3,823,017,135.36/65,360.80
  6. Step 6: Final answer
    x = 58,490.98

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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.