Home / 86,173.84-129,296.38-38,117.18

Finding the Fourth Proportional to 86,173.84, 129,296.38 and 38,117.18

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Solution

The fourth proportional to 86,173.84, 129,296.38 and 38,117.18 is: 57,191.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,173.84 : 129,296.38 = 38,117.18 : x
  2. Step 2: Convert to fraction form
    86,173.84/129,296.38 = 38,117.18/x
  3. Step 3: Cross multiply
    86,173.84x = 129,296.38 × 38,117.18
  4. Step 4: Simplify right side
    86,173.84x = 4,928,413,389.81
  5. Step 5: Solve for x
    x = 4,928,413,389.81/86,173.84
  6. Step 6: Final answer
    x = 57,191.53

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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.