Home / 84,092.94-126,135.75-20,911.74

Finding the Fourth Proportional to 84,092.94, 126,135.75 and 20,911.74

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Solution

The fourth proportional to 84,092.94, 126,135.75 and 20,911.74 is: 31,366.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,092.94 : 126,135.75 = 20,911.74 : x
  2. Step 2: Convert to fraction form
    84,092.94/126,135.75 = 20,911.74/x
  3. Step 3: Cross multiply
    84,092.94x = 126,135.75 × 20,911.74
  4. Step 4: Simplify right side
    84,092.94x = 2,637,718,008.71
  5. Step 5: Solve for x
    x = 2,637,718,008.71/84,092.94
  6. Step 6: Final answer
    x = 31,366.70

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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.