Home / 65,681.56-90,640.66-37,387.25

Finding the Fourth Proportional to 65,681.56, 90,640.66 and 37,387.25

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Solution

The fourth proportional to 65,681.56, 90,640.66 and 37,387.25 is: 51,594.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,681.56 : 90,640.66 = 37,387.25 : x
  2. Step 2: Convert to fraction form
    65,681.56/90,640.66 = 37,387.25/x
  3. Step 3: Cross multiply
    65,681.56x = 90,640.66 × 37,387.25
  4. Step 4: Simplify right side
    65,681.56x = 3,388,805,335.65
  5. Step 5: Solve for x
    x = 3,388,805,335.65/65,681.56
  6. Step 6: Final answer
    x = 51,594.47

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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.