Home / 74,895.04-103,355.20-40,904

Finding the Fourth Proportional to 74,895.04, 103,355.20 and 40,904

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Solution

The fourth proportional to 74,895.04, 103,355.20 and 40,904 is: 56,447.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,895.04 : 103,355.20 = 40,904 : x
  2. Step 2: Convert to fraction form
    74,895.04/103,355.20 = 40,904/x
  3. Step 3: Cross multiply
    74,895.04x = 103,355.20 × 40,904
  4. Step 4: Simplify right side
    74,895.04x = 4,227,641,100.80
  5. Step 5: Solve for x
    x = 4,227,641,100.80/74,895.04
  6. Step 6: Final answer
    x = 56,447.54

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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.