Home / 75,389.76-104,056.56-43,578.48

Finding the Fourth Proportional to 75,389.76, 104,056.56 and 43,578.48

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Solution

The fourth proportional to 75,389.76, 104,056.56 and 43,578.48 is: 60,149.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,389.76 : 104,056.56 = 43,578.48 : x
  2. Step 2: Convert to fraction form
    75,389.76/104,056.56 = 43,578.48/x
  3. Step 3: Cross multiply
    75,389.76x = 104,056.56 × 43,578.48
  4. Step 4: Simplify right side
    75,389.76x = 4,534,626,718.83
  5. Step 5: Solve for x
    x = 4,534,626,718.83/75,389.76
  6. Step 6: Final answer
    x = 60,149.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.