Home / 88,131.48-121,616.50-51,348.87

Finding the Fourth Proportional to 88,131.48, 121,616.50 and 51,348.87

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Solution

The fourth proportional to 88,131.48, 121,616.50 and 51,348.87 is: 70,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,131.48 : 121,616.50 = 51,348.87 : x
  2. Step 2: Convert to fraction form
    88,131.48/121,616.50 = 51,348.87/x
  3. Step 3: Cross multiply
    88,131.48x = 121,616.50 × 51,348.87
  4. Step 4: Simplify right side
    88,131.48x = 6,244,869,848.36
  5. Step 5: Solve for x
    x = 6,244,869,848.36/88,131.48
  6. Step 6: Final answer
    x = 70,858.56

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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.