Home / 74,959.62-103,441.20-40,969.28

Finding the Fourth Proportional to 74,959.62, 103,441.20 and 40,969.28

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Solution

The fourth proportional to 74,959.62, 103,441.20 and 40,969.28 is: 56,535.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,959.62 : 103,441.20 = 40,969.28 : x
  2. Step 2: Convert to fraction form
    74,959.62/103,441.20 = 40,969.28/x
  3. Step 3: Cross multiply
    74,959.62x = 103,441.20 × 40,969.28
  4. Step 4: Simplify right side
    74,959.62x = 4,237,911,486.34
  5. Step 5: Solve for x
    x = 4,237,911,486.34/74,959.62
  6. Step 6: Final answer
    x = 56,535.93

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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.