Home / 65,679.24-90,638.04-37,386.75

Finding the Fourth Proportional to 65,679.24, 90,638.04 and 37,386.75

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Solution

The fourth proportional to 65,679.24, 90,638.04 and 37,386.75 is: 51,594.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,679.24 : 90,638.04 = 37,386.75 : x
  2. Step 2: Convert to fraction form
    65,679.24/90,638.04 = 37,386.75/x
  3. Step 3: Cross multiply
    65,679.24x = 90,638.04 × 37,386.75
  4. Step 4: Simplify right side
    65,679.24x = 3,388,661,741.97
  5. Step 5: Solve for x
    x = 3,388,661,741.97/65,679.24
  6. Step 6: Final answer
    x = 51,594.11

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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.