Home / 69,938.90-96,515.70-38,107.80

Finding the Fourth Proportional to 69,938.90, 96,515.70 and 38,107.80

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Solution

The fourth proportional to 69,938.90, 96,515.70 and 38,107.80 is: 52,588.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,938.90 : 96,515.70 = 38,107.80 : x
  2. Step 2: Convert to fraction form
    69,938.90/96,515.70 = 38,107.80/x
  3. Step 3: Cross multiply
    69,938.90x = 96,515.70 × 38,107.80
  4. Step 4: Simplify right side
    69,938.90x = 3,678,001,211.49
  5. Step 5: Solve for x
    x = 3,678,001,211.49/69,938.90
  6. Step 6: Final answer
    x = 52,588.78

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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.