Home / 65,711.50-90,682.01-37,417.21

Finding the Fourth Proportional to 65,711.50, 90,682.01 and 37,417.21

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Solution

The fourth proportional to 65,711.50, 90,682.01 and 37,417.21 is: 51,635.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,711.50 : 90,682.01 = 37,417.21 : x
  2. Step 2: Convert to fraction form
    65,711.50/90,682.01 = 37,417.21/x
  3. Step 3: Cross multiply
    65,711.50x = 90,682.01 × 37,417.21
  4. Step 4: Simplify right side
    65,711.50x = 3,393,067,811.39
  5. Step 5: Solve for x
    x = 3,393,067,811.39/65,711.50
  6. Step 6: Final answer
    x = 51,635.83

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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.