Home / 84,340.34-126,468.54-28,161.17

Finding the Fourth Proportional to 84,340.34, 126,468.54 and 28,161.17

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Solution

The fourth proportional to 84,340.34, 126,468.54 and 28,161.17 is: 42,227.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,340.34 : 126,468.54 = 28,161.17 : x
  2. Step 2: Convert to fraction form
    84,340.34/126,468.54 = 28,161.17/x
  3. Step 3: Cross multiply
    84,340.34x = 126,468.54 × 28,161.17
  4. Step 4: Simplify right side
    84,340.34x = 3,561,501,896.51
  5. Step 5: Solve for x
    x = 3,561,501,896.51/84,340.34
  6. Step 6: Final answer
    x = 42,227.74

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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.