Home / 74,062.10-102,205.32-40,070.54

Finding the Fourth Proportional to 74,062.10, 102,205.32 and 40,070.54

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Solution

The fourth proportional to 74,062.10, 102,205.32 and 40,070.54 is: 55,297.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,062.10 : 102,205.32 = 40,070.54 : x
  2. Step 2: Convert to fraction form
    74,062.10/102,205.32 = 40,070.54/x
  3. Step 3: Cross multiply
    74,062.10x = 102,205.32 × 40,070.54
  4. Step 4: Simplify right side
    74,062.10x = 4,095,422,363.27
  5. Step 5: Solve for x
    x = 4,095,422,363.27/74,062.10
  6. Step 6: Final answer
    x = 55,297.14

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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.