Home / 84,364.72-126,547.06-77,324.96

Finding the Fourth Proportional to 84,364.72, 126,547.06 and 77,324.96

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Solution

The fourth proportional to 84,364.72, 126,547.06 and 77,324.96 is: 115,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,364.72 : 126,547.06 = 77,324.96 : x
  2. Step 2: Convert to fraction form
    84,364.72/126,547.06 = 77,324.96/x
  3. Step 3: Cross multiply
    84,364.72x = 126,547.06 × 77,324.96
  4. Step 4: Simplify right side
    84,364.72x = 9,785,246,352.62
  5. Step 5: Solve for x
    x = 9,785,246,352.62/84,364.72
  6. Step 6: Final answer
    x = 115,987.42

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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.