Home / 84,561.09-126,844.71-28,403.04

Finding the Fourth Proportional to 84,561.09, 126,844.71 and 28,403.04

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Solution

The fourth proportional to 84,561.09, 126,844.71 and 28,403.04 is: 42,605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,561.09 : 126,844.71 = 28,403.04 : x
  2. Step 2: Convert to fraction form
    84,561.09/126,844.71 = 28,403.04/x
  3. Step 3: Cross multiply
    84,561.09x = 126,844.71 × 28,403.04
  4. Step 4: Simplify right side
    84,561.09x = 3,602,775,371.92
  5. Step 5: Solve for x
    x = 3,602,775,371.92/84,561.09
  6. Step 6: Final answer
    x = 42,605.59

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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.