Home / 84,259.26-126,346.57-28,079.69

Finding the Fourth Proportional to 84,259.26, 126,346.57 and 28,079.69

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Solution

The fourth proportional to 84,259.26, 126,346.57 and 28,079.69 is: 42,105.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,259.26 : 126,346.57 = 28,079.69 : x
  2. Step 2: Convert to fraction form
    84,259.26/126,346.57 = 28,079.69/x
  3. Step 3: Cross multiply
    84,259.26x = 126,346.57 × 28,079.69
  4. Step 4: Simplify right side
    84,259.26x = 3,547,771,816.23
  5. Step 5: Solve for x
    x = 3,547,771,816.23/84,259.26
  6. Step 6: Final answer
    x = 42,105.42

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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.