Home / 83,428.44-115,131.36-45,188.07

Finding the Fourth Proportional to 83,428.44, 115,131.36 and 45,188.07

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Solution

The fourth proportional to 83,428.44, 115,131.36 and 45,188.07 is: 62,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,428.44 : 115,131.36 = 45,188.07 : x
  2. Step 2: Convert to fraction form
    83,428.44/115,131.36 = 45,188.07/x
  3. Step 3: Cross multiply
    83,428.44x = 115,131.36 × 45,188.07
  4. Step 4: Simplify right side
    83,428.44x = 5,202,563,954.88
  5. Step 5: Solve for x
    x = 5,202,563,954.88/83,428.44
  6. Step 6: Final answer
    x = 62,359.60

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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.