Home / 83,511.11-115,090.76-59,313.13

Finding the Fourth Proportional to 83,511.11, 115,090.76 and 59,313.13

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Solution

The fourth proportional to 83,511.11, 115,090.76 and 59,313.13 is: 81,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,511.11 : 115,090.76 = 59,313.13 : x
  2. Step 2: Convert to fraction form
    83,511.11/115,090.76 = 59,313.13/x
  3. Step 3: Cross multiply
    83,511.11x = 115,090.76 × 59,313.13
  4. Step 4: Simplify right side
    83,511.11x = 6,826,393,070.23
  5. Step 5: Solve for x
    x = 6,826,393,070.23/83,511.11
  6. Step 6: Final answer
    x = 81,742.33

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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.