Home / 32,905.60-49,358.40-31,220.80

Finding the Fourth Proportional to 32,905.60, 49,358.40 and 31,220.80

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Solution

The fourth proportional to 32,905.60, 49,358.40 and 31,220.80 is: 46,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,905.60 : 49,358.40 = 31,220.80 : x
  2. Step 2: Convert to fraction form
    32,905.60/49,358.40 = 31,220.80/x
  3. Step 3: Cross multiply
    32,905.60x = 49,358.40 × 31,220.80
  4. Step 4: Simplify right side
    32,905.60x = 1,541,008,734.72
  5. Step 5: Solve for x
    x = 1,541,008,734.72/32,905.60
  6. Step 6: Final answer
    x = 46,831.20

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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.