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Finding the Fourth Proportional to 91,296.58, 125,976.74 and 51,005.34

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Solution

The fourth proportional to 91,296.58, 125,976.74 and 51,005.34 is: 70,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,296.58 : 125,976.74 = 51,005.34 : x
  2. Step 2: Convert to fraction form
    91,296.58/125,976.74 = 51,005.34/x
  3. Step 3: Cross multiply
    91,296.58x = 125,976.74 × 51,005.34
  4. Step 4: Simplify right side
    91,296.58x = 6,425,486,455.79
  5. Step 5: Solve for x
    x = 6,425,486,455.79/91,296.58
  6. Step 6: Final answer
    x = 70,380.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.