Home / 65,979.68-91,064.14-37,685.36

Finding the Fourth Proportional to 65,979.68, 91,064.14 and 37,685.36

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Solution

The fourth proportional to 65,979.68, 91,064.14 and 37,685.36 is: 52,012.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,979.68 : 91,064.14 = 37,685.36 : x
  2. Step 2: Convert to fraction form
    65,979.68/91,064.14 = 37,685.36/x
  3. Step 3: Cross multiply
    65,979.68x = 91,064.14 × 37,685.36
  4. Step 4: Simplify right side
    65,979.68x = 3,431,784,898.99
  5. Step 5: Solve for x
    x = 3,431,784,898.99/65,979.68
  6. Step 6: Final answer
    x = 52,012.75

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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.