Home / 81,297.35-112,141.23-53,702.18

Finding the Fourth Proportional to 81,297.35, 112,141.23 and 53,702.18

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Solution

The fourth proportional to 81,297.35, 112,141.23 and 53,702.18 is: 74,076.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,297.35 : 112,141.23 = 53,702.18 : x
  2. Step 2: Convert to fraction form
    81,297.35/112,141.23 = 53,702.18/x
  3. Step 3: Cross multiply
    81,297.35x = 112,141.23 × 53,702.18
  4. Step 4: Simplify right side
    81,297.35x = 6,022,228,518.88
  5. Step 5: Solve for x
    x = 6,022,228,518.88/81,297.35
  6. Step 6: Final answer
    x = 74,076.57

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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.