Home / 60,546.40-90,827.70-21,115.60

Finding the Fourth Proportional to 60,546.40, 90,827.70 and 21,115.60

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Solution

The fourth proportional to 60,546.40, 90,827.70 and 21,115.60 is: 31,676.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,546.40 : 90,827.70 = 21,115.60 : x
  2. Step 2: Convert to fraction form
    60,546.40/90,827.70 = 21,115.60/x
  3. Step 3: Cross multiply
    60,546.40x = 90,827.70 × 21,115.60
  4. Step 4: Simplify right side
    60,546.40x = 1,917,881,382.12
  5. Step 5: Solve for x
    x = 1,917,881,382.12/60,546.40
  6. Step 6: Final answer
    x = 31,676.22

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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.