Home / 74,619.47-102,969.68-42,354.76

Finding the Fourth Proportional to 74,619.47, 102,969.68 and 42,354.76

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Solution

The fourth proportional to 74,619.47, 102,969.68 and 42,354.76 is: 58,446.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,619.47 : 102,969.68 = 42,354.76 : x
  2. Step 2: Convert to fraction form
    74,619.47/102,969.68 = 42,354.76/x
  3. Step 3: Cross multiply
    74,619.47x = 102,969.68 × 42,354.76
  4. Step 4: Simplify right side
    74,619.47x = 4,361,256,083.68
  5. Step 5: Solve for x
    x = 4,361,256,083.68/74,619.47
  6. Step 6: Final answer
    x = 58,446.62

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1.5x scale

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.