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Finding the Fourth Proportional to 68,884.79, 95,075.01 and 39,814.40

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Solution

The fourth proportional to 68,884.79, 95,075.01 and 39,814.40 is: 54,951.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,884.79 : 95,075.01 = 39,814.40 : x
  2. Step 2: Convert to fraction form
    68,884.79/95,075.01 = 39,814.40/x
  3. Step 3: Cross multiply
    68,884.79x = 95,075.01 × 39,814.40
  4. Step 4: Simplify right side
    68,884.79x = 3,785,354,715.83
  5. Step 5: Solve for x
    x = 3,785,354,715.83/68,884.79
  6. Step 6: Final answer
    x = 54,951.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.