Home / 83,691.04-115,496.40-45,968.80

Finding the Fourth Proportional to 83,691.04, 115,496.40 and 45,968.80

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Solution

The fourth proportional to 83,691.04, 115,496.40 and 45,968.80 is: 63,438.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,691.04 : 115,496.40 = 45,968.80 : x
  2. Step 2: Convert to fraction form
    83,691.04/115,496.40 = 45,968.80/x
  3. Step 3: Cross multiply
    83,691.04x = 115,496.40 × 45,968.80
  4. Step 4: Simplify right side
    83,691.04x = 5,309,230,912.32
  5. Step 5: Solve for x
    x = 5,309,230,912.32/83,691.04
  6. Step 6: Final answer
    x = 63,438.46

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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.