Home / 81,059.60-121,506.31-33,702.18

Finding the Fourth Proportional to 81,059.60, 121,506.31 and 33,702.18

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Solution

The fourth proportional to 81,059.60, 121,506.31 and 33,702.18 is: 50,518.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,059.60 : 121,506.31 = 33,702.18 : x
  2. Step 2: Convert to fraction form
    81,059.60/121,506.31 = 33,702.18/x
  3. Step 3: Cross multiply
    81,059.60x = 121,506.31 × 33,702.18
  4. Step 4: Simplify right side
    81,059.60x = 4,095,027,117.23
  5. Step 5: Solve for x
    x = 4,095,027,117.23/81,059.60
  6. Step 6: Final answer
    x = 50,518.72

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1.5x scale

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.