Home / 86,455.13-119,406.49-58,111.61

Finding the Fourth Proportional to 86,455.13, 119,406.49 and 58,111.61

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Solution

The fourth proportional to 86,455.13, 119,406.49 and 58,111.61 is: 80,260.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,455.13 : 119,406.49 = 58,111.61 : x
  2. Step 2: Convert to fraction form
    86,455.13/119,406.49 = 58,111.61/x
  3. Step 3: Cross multiply
    86,455.13x = 119,406.49 × 58,111.61
  4. Step 4: Simplify right side
    86,455.13x = 6,938,902,636.04
  5. Step 5: Solve for x
    x = 6,938,902,636.04/86,455.13
  6. Step 6: Final answer
    x = 80,260.17

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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.