Home / 84,934.60-127,415.72-31,626.78

Finding the Fourth Proportional to 84,934.60, 127,415.72 and 31,626.78

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Solution

The fourth proportional to 84,934.60, 127,415.72 and 31,626.78 is: 47,445.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,934.60 : 127,415.72 = 31,626.78 : x
  2. Step 2: Convert to fraction form
    84,934.60/127,415.72 = 31,626.78/x
  3. Step 3: Cross multiply
    84,934.60x = 127,415.72 × 31,626.78
  4. Step 4: Simplify right side
    84,934.60x = 4,029,748,944.98
  5. Step 5: Solve for x
    x = 4,029,748,944.98/84,934.60
  6. Step 6: Final answer
    x = 47,445.32

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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.