Home / 74,788.70-103,206.60-42,959.66

Finding the Fourth Proportional to 74,788.70, 103,206.60 and 42,959.66

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Solution

The fourth proportional to 74,788.70, 103,206.60 and 42,959.66 is: 59,283.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,788.70 : 103,206.60 = 42,959.66 : x
  2. Step 2: Convert to fraction form
    74,788.70/103,206.60 = 42,959.66/x
  3. Step 3: Cross multiply
    74,788.70x = 103,206.60 × 42,959.66
  4. Step 4: Simplify right side
    74,788.70x = 4,433,719,929.72
  5. Step 5: Solve for x
    x = 4,433,719,929.72/74,788.70
  6. Step 6: Final answer
    x = 59,283.29

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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.