Home / 74,714.20-112,071.50-21,406.07

Finding the Fourth Proportional to 74,714.20, 112,071.50 and 21,406.07

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Solution

The fourth proportional to 74,714.20, 112,071.50 and 21,406.07 is: 32,109.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,714.20 : 112,071.50 = 21,406.07 : x
  2. Step 2: Convert to fraction form
    74,714.20/112,071.50 = 21,406.07/x
  3. Step 3: Cross multiply
    74,714.20x = 112,071.50 × 21,406.07
  4. Step 4: Simplify right side
    74,714.20x = 2,399,010,627.43
  5. Step 5: Solve for x
    x = 2,399,010,627.43/74,714.20
  6. Step 6: Final answer
    x = 32,109.17

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1.5x scale

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.