Home / 86,664.70-130,009.20-34,061.95

Finding the Fourth Proportional to 86,664.70, 130,009.20 and 34,061.95

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Solution

The fourth proportional to 86,664.70, 130,009.20 and 34,061.95 is: 51,097.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,664.70 : 130,009.20 = 34,061.95 : x
  2. Step 2: Convert to fraction form
    86,664.70/130,009.20 = 34,061.95/x
  3. Step 3: Cross multiply
    86,664.70x = 130,009.20 × 34,061.95
  4. Step 4: Simplify right side
    86,664.70x = 4,428,366,869.94
  5. Step 5: Solve for x
    x = 4,428,366,869.94/86,664.70
  6. Step 6: Final answer
    x = 51,097.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.