Home / 65,712.07-90,682.68-35,497.39

Finding the Fourth Proportional to 65,712.07, 90,682.68 and 35,497.39

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Solution

The fourth proportional to 65,712.07, 90,682.68 and 35,497.39 is: 48,986.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,712.07 : 90,682.68 = 35,497.39 : x
  2. Step 2: Convert to fraction form
    65,712.07/90,682.68 = 35,497.39/x
  3. Step 3: Cross multiply
    65,712.07x = 90,682.68 × 35,497.39
  4. Step 4: Simplify right side
    65,712.07x = 3,218,998,004.79
  5. Step 5: Solve for x
    x = 3,218,998,004.79/65,712.07
  6. Step 6: Final answer
    x = 48,986.41

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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.