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Finding the Fourth Proportional to 84,577.83, 126,877.65 and 28,393.80

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Solution

The fourth proportional to 84,577.83, 126,877.65 and 28,393.80 is: 42,594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,577.83 : 126,877.65 = 28,393.80 : x
  2. Step 2: Convert to fraction form
    84,577.83/126,877.65 = 28,393.80/x
  3. Step 3: Cross multiply
    84,577.83x = 126,877.65 × 28,393.80
  4. Step 4: Simplify right side
    84,577.83x = 3,602,538,618.57
  5. Step 5: Solve for x
    x = 3,602,538,618.57/84,577.83
  6. Step 6: Final answer
    x = 42,594.36

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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.