Home / 84,395.81-126,546.33-28,206.32

Finding the Fourth Proportional to 84,395.81, 126,546.33 and 28,206.32

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Solution

The fourth proportional to 84,395.81, 126,546.33 and 28,206.32 is: 42,293.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,395.81 : 126,546.33 = 28,206.32 : x
  2. Step 2: Convert to fraction form
    84,395.81/126,546.33 = 28,206.32/x
  3. Step 3: Cross multiply
    84,395.81x = 126,546.33 × 28,206.32
  4. Step 4: Simplify right side
    84,395.81x = 3,569,406,278.81
  5. Step 5: Solve for x
    x = 3,569,406,278.81/84,395.81
  6. Step 6: Final answer
    x = 42,293.64

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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.