Home / 86,364.18-129,563.73-36,444.39

Finding the Fourth Proportional to 86,364.18, 129,563.73 and 36,444.39

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Solution

The fourth proportional to 86,364.18, 129,563.73 and 36,444.39 is: 54,673.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,364.18 : 129,563.73 = 36,444.39 : x
  2. Step 2: Convert to fraction form
    86,364.18/129,563.73 = 36,444.39/x
  3. Step 3: Cross multiply
    86,364.18x = 129,563.73 × 36,444.39
  4. Step 4: Simplify right side
    86,364.18x = 4,721,871,105.97
  5. Step 5: Solve for x
    x = 4,721,871,105.97/86,364.18
  6. Step 6: Final answer
    x = 54,673.95

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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.