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Finding the Fourth Proportional to 78,802.86, 118,204.29 and 33,814.46

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Solution

The fourth proportional to 78,802.86, 118,204.29 and 33,814.46 is: 50,721.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,802.86 : 118,204.29 = 33,814.46 : x
  2. Step 2: Convert to fraction form
    78,802.86/118,204.29 = 33,814.46/x
  3. Step 3: Cross multiply
    78,802.86x = 118,204.29 × 33,814.46
  4. Step 4: Simplify right side
    78,802.86x = 3,997,013,645.01
  5. Step 5: Solve for x
    x = 3,997,013,645.01/78,802.86
  6. Step 6: Final answer
    x = 50,721.68

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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.