Home / 83,687.04-115,495.20-45,969.12

Finding the Fourth Proportional to 83,687.04, 115,495.20 and 45,969.12

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Solution

The fourth proportional to 83,687.04, 115,495.20 and 45,969.12 is: 63,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,687.04 : 115,495.20 = 45,969.12 : x
  2. Step 2: Convert to fraction form
    83,687.04/115,495.20 = 45,969.12/x
  3. Step 3: Cross multiply
    83,687.04x = 115,495.20 × 45,969.12
  4. Step 4: Simplify right side
    83,687.04x = 5,309,212,708.22
  5. Step 5: Solve for x
    x = 5,309,212,708.22/83,687.04
  6. Step 6: Final answer
    x = 63,441.28

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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.