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Finding the Fourth Proportional to 55,802.40, 83,703.60 and 33,640.80

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Solution

The fourth proportional to 55,802.40, 83,703.60 and 33,640.80 is: 50,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,802.40 : 83,703.60 = 33,640.80 : x
  2. Step 2: Convert to fraction form
    55,802.40/83,703.60 = 33,640.80/x
  3. Step 3: Cross multiply
    55,802.40x = 83,703.60 × 33,640.80
  4. Step 4: Simplify right side
    55,802.40x = 2,815,856,066.88
  5. Step 5: Solve for x
    x = 2,815,856,066.88/55,802.40
  6. Step 6: Final answer
    x = 50,461.20

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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.