Home / 74,085.66-102,217.32-43,857.72

Finding the Fourth Proportional to 74,085.66, 102,217.32 and 43,857.72

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Solution

The fourth proportional to 74,085.66, 102,217.32 and 43,857.72 is: 60,511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,085.66 : 102,217.32 = 43,857.72 : x
  2. Step 2: Convert to fraction form
    74,085.66/102,217.32 = 43,857.72/x
  3. Step 3: Cross multiply
    74,085.66x = 102,217.32 × 43,857.72
  4. Step 4: Simplify right side
    74,085.66x = 4,483,018,599.71
  5. Step 5: Solve for x
    x = 4,483,018,599.71/74,085.66
  6. Step 6: Final answer
    x = 60,511.29

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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.