Home / 74,924.91-112,391.69-28,178.19

Finding the Fourth Proportional to 74,924.91, 112,391.69 and 28,178.19

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Solution

The fourth proportional to 74,924.91, 112,391.69 and 28,178.19 is: 42,268.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,924.91 : 112,391.69 = 28,178.19 : x
  2. Step 2: Convert to fraction form
    74,924.91/112,391.69 = 28,178.19/x
  3. Step 3: Cross multiply
    74,924.91x = 112,391.69 × 28,178.19
  4. Step 4: Simplify right side
    74,924.91x = 3,166,994,254.35
  5. Step 5: Solve for x
    x = 3,166,994,254.35/74,924.91
  6. Step 6: Final answer
    x = 42,268.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.