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Finding the Fourth Proportional to 84,752.58, 127,124.75 and 31,454.94

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Solution

The fourth proportional to 84,752.58, 127,124.75 and 31,454.94 is: 47,180.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,752.58 : 127,124.75 = 31,454.94 : x
  2. Step 2: Convert to fraction form
    84,752.58/127,124.75 = 31,454.94/x
  3. Step 3: Cross multiply
    84,752.58x = 127,124.75 × 31,454.94
  4. Step 4: Simplify right side
    84,752.58x = 3,998,701,383.77
  5. Step 5: Solve for x
    x = 3,998,701,383.77/84,752.58
  6. Step 6: Final answer
    x = 47,180.88

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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.