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Finding the Fourth Proportional to 84,617.60, 126,877.80 and 25,444.40

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Solution

The fourth proportional to 84,617.60, 126,877.80 and 25,444.40 is: 38,151.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,617.60 : 126,877.80 = 25,444.40 : x
  2. Step 2: Convert to fraction form
    84,617.60/126,877.80 = 25,444.40/x
  3. Step 3: Cross multiply
    84,617.60x = 126,877.80 × 25,444.40
  4. Step 4: Simplify right side
    84,617.60x = 3,228,329,494.32
  5. Step 5: Solve for x
    x = 3,228,329,494.32/84,617.60
  6. Step 6: Final answer
    x = 38,151.99

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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.