Home / 86,943.11-120,022.58-58,281.51

Finding the Fourth Proportional to 86,943.11, 120,022.58 and 58,281.51

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Solution

The fourth proportional to 86,943.11, 120,022.58 and 58,281.51 is: 80,456.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,943.11 : 120,022.58 = 58,281.51 : x
  2. Step 2: Convert to fraction form
    86,943.11/120,022.58 = 58,281.51/x
  3. Step 3: Cross multiply
    86,943.11x = 120,022.58 × 58,281.51
  4. Step 4: Simplify right side
    86,943.11x = 6,995,097,196.50
  5. Step 5: Solve for x
    x = 6,995,097,196.50/86,943.11
  6. Step 6: Final answer
    x = 80,456.02

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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.