Home / 84,243.06-126,355.91-28,077.10

Finding the Fourth Proportional to 84,243.06, 126,355.91 and 28,077.10

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Solution

The fourth proportional to 84,243.06, 126,355.91 and 28,077.10 is: 42,112.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,243.06 : 126,355.91 = 28,077.10 : x
  2. Step 2: Convert to fraction form
    84,243.06/126,355.91 = 28,077.10/x
  3. Step 3: Cross multiply
    84,243.06x = 126,355.91 × 28,077.10
  4. Step 4: Simplify right side
    84,243.06x = 3,547,707,274.96
  5. Step 5: Solve for x
    x = 3,547,707,274.96/84,243.06
  6. Step 6: Final answer
    x = 42,112.75

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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.