Home / 65,909.28-90,961.30-37,619.22

Finding the Fourth Proportional to 65,909.28, 90,961.30 and 37,619.22

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Solution

The fourth proportional to 65,909.28, 90,961.30 and 37,619.22 is: 51,918.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,909.28 : 90,961.30 = 37,619.22 : x
  2. Step 2: Convert to fraction form
    65,909.28/90,961.30 = 37,619.22/x
  3. Step 3: Cross multiply
    65,909.28x = 90,961.30 × 37,619.22
  4. Step 4: Simplify right side
    65,909.28x = 3,421,893,156.19
  5. Step 5: Solve for x
    x = 3,421,893,156.19/65,909.28
  6. Step 6: Final answer
    x = 51,918.23

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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.