Home / 84,899.70-127,268.55-31,577.40

Finding the Fourth Proportional to 84,899.70, 127,268.55 and 31,577.40

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Solution

The fourth proportional to 84,899.70, 127,268.55 and 31,577.40 is: 47,335.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,899.70 : 127,268.55 = 31,577.40 : x
  2. Step 2: Convert to fraction form
    84,899.70/127,268.55 = 31,577.40/x
  3. Step 3: Cross multiply
    84,899.70x = 127,268.55 × 31,577.40
  4. Step 4: Simplify right side
    84,899.70x = 4,018,809,910.77
  5. Step 5: Solve for x
    x = 4,018,809,910.77/84,899.70
  6. Step 6: Final answer
    x = 47,335.97

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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.