Home / 86,190.48-129,253.71-30,016.17

Finding the Fourth Proportional to 86,190.48, 129,253.71 and 30,016.17

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Solution

The fourth proportional to 86,190.48, 129,253.71 and 30,016.17 is: 45,013.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,190.48 : 129,253.71 = 30,016.17 : x
  2. Step 2: Convert to fraction form
    86,190.48/129,253.71 = 30,016.17/x
  3. Step 3: Cross multiply
    86,190.48x = 129,253.71 × 30,016.17
  4. Step 4: Simplify right side
    86,190.48x = 3,879,701,332.49
  5. Step 5: Solve for x
    x = 3,879,701,332.49/86,190.48
  6. Step 6: Final answer
    x = 45,013.11

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1.5x scale

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.