Home / 85,101.02-127,656.32-25,938.62

Finding the Fourth Proportional to 85,101.02, 127,656.32 and 25,938.62

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Solution

The fourth proportional to 85,101.02, 127,656.32 and 25,938.62 is: 38,909.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,101.02 : 127,656.32 = 25,938.62 : x
  2. Step 2: Convert to fraction form
    85,101.02/127,656.32 = 25,938.62/x
  3. Step 3: Cross multiply
    85,101.02x = 127,656.32 × 25,938.62
  4. Step 4: Simplify right side
    85,101.02x = 3,311,228,136.80
  5. Step 5: Solve for x
    x = 3,311,228,136.80/85,101.02
  6. Step 6: Final answer
    x = 38,909.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.