Home / 65,899.97-90,938.36-39,044.96

Finding the Fourth Proportional to 65,899.97, 90,938.36 and 39,044.96

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Solution

The fourth proportional to 65,899.97, 90,938.36 and 39,044.96 is: 53,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,899.97 : 90,938.36 = 39,044.96 : x
  2. Step 2: Convert to fraction form
    65,899.97/90,938.36 = 39,044.96/x
  3. Step 3: Cross multiply
    65,899.97x = 90,938.36 × 39,044.96
  4. Step 4: Simplify right side
    65,899.97x = 3,550,684,628.67
  5. Step 5: Solve for x
    x = 3,550,684,628.67/65,899.97
  6. Step 6: Final answer
    x = 53,879.91

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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.