Home / 65,909.53-90,961.65-37,619.47

Finding the Fourth Proportional to 65,909.53, 90,961.65 and 37,619.47

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Solution

The fourth proportional to 65,909.53, 90,961.65 and 37,619.47 is: 51,918.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,909.53 : 90,961.65 = 37,619.47 : x
  2. Step 2: Convert to fraction form
    65,909.53/90,961.65 = 37,619.47/x
  3. Step 3: Cross multiply
    65,909.53x = 90,961.65 × 37,619.47
  4. Step 4: Simplify right side
    65,909.53x = 3,421,928,875.23
  5. Step 5: Solve for x
    x = 3,421,928,875.23/65,909.53
  6. Step 6: Final answer
    x = 51,918.57

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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.