Home / 74,610.16-102,976.86-42,800.56

Finding the Fourth Proportional to 74,610.16, 102,976.86 and 42,800.56

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Solution

The fourth proportional to 74,610.16, 102,976.86 and 42,800.56 is: 59,073.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,610.16 : 102,976.86 = 42,800.56 : x
  2. Step 2: Convert to fraction form
    74,610.16/102,976.86 = 42,800.56/x
  3. Step 3: Cross multiply
    74,610.16x = 102,976.86 × 42,800.56
  4. Step 4: Simplify right side
    74,610.16x = 4,407,467,275.04
  5. Step 5: Solve for x
    x = 4,407,467,275.04/74,610.16
  6. Step 6: Final answer
    x = 59,073.29

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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.