Home / 65,680.07-90,638.60-37,385.75

Finding the Fourth Proportional to 65,680.07, 90,638.60 and 37,385.75

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Solution

The fourth proportional to 65,680.07, 90,638.60 and 37,385.75 is: 51,592.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,680.07 : 90,638.60 = 37,385.75 : x
  2. Step 2: Convert to fraction form
    65,680.07/90,638.60 = 37,385.75/x
  3. Step 3: Cross multiply
    65,680.07x = 90,638.60 × 37,385.75
  4. Step 4: Simplify right side
    65,680.07x = 3,388,591,853.02
  5. Step 5: Solve for x
    x = 3,388,591,853.02/65,680.07
  6. Step 6: Final answer
    x = 51,592.39

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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.