Home / 86,553.71-129,810.51-27,378.35

Finding the Fourth Proportional to 86,553.71, 129,810.51 and 27,378.35

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Solution

The fourth proportional to 86,553.71, 129,810.51 and 27,378.35 is: 41,061.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,553.71 : 129,810.51 = 27,378.35 : x
  2. Step 2: Convert to fraction form
    86,553.71/129,810.51 = 27,378.35/x
  3. Step 3: Cross multiply
    86,553.71x = 129,810.51 × 27,378.35
  4. Step 4: Simplify right side
    86,553.71x = 3,553,996,927.41
  5. Step 5: Solve for x
    x = 3,553,996,927.41/86,553.71
  6. Step 6: Final answer
    x = 41,061.18

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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.