Home / 74,802.52-103,236.62-42,971.35

Finding the Fourth Proportional to 74,802.52, 103,236.62 and 42,971.35

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Solution

The fourth proportional to 74,802.52, 103,236.62 and 42,971.35 is: 59,305.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,802.52 : 103,236.62 = 42,971.35 : x
  2. Step 2: Convert to fraction form
    74,802.52/103,236.62 = 42,971.35/x
  3. Step 3: Cross multiply
    74,802.52x = 103,236.62 × 42,971.35
  4. Step 4: Simplify right side
    74,802.52x = 4,436,216,715.98
  5. Step 5: Solve for x
    x = 4,436,216,715.98/74,802.52
  6. Step 6: Final answer
    x = 59,305.71

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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.