Home / 81,905.40-122,922.90-32,009.40

Finding the Fourth Proportional to 81,905.40, 122,922.90 and 32,009.40

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Solution

The fourth proportional to 81,905.40, 122,922.90 and 32,009.40 is: 48,039.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,905.40 : 122,922.90 = 32,009.40 : x
  2. Step 2: Convert to fraction form
    81,905.40/122,922.90 = 32,009.40/x
  3. Step 3: Cross multiply
    81,905.40x = 122,922.90 × 32,009.40
  4. Step 4: Simplify right side
    81,905.40x = 3,934,688,275.26
  5. Step 5: Solve for x
    x = 3,934,688,275.26/81,905.40
  6. Step 6: Final answer
    x = 48,039.42

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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.