Home / 74,687.22-112,028.58-30,312.90

Finding the Fourth Proportional to 74,687.22, 112,028.58 and 30,312.90

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Solution

The fourth proportional to 74,687.22, 112,028.58 and 30,312.90 is: 45,468.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,687.22 : 112,028.58 = 30,312.90 : x
  2. Step 2: Convert to fraction form
    74,687.22/112,028.58 = 30,312.90/x
  3. Step 3: Cross multiply
    74,687.22x = 112,028.58 × 30,312.90
  4. Step 4: Simplify right side
    74,687.22x = 3,395,911,142.68
  5. Step 5: Solve for x
    x = 3,395,911,142.68/74,687.22
  6. Step 6: Final answer
    x = 45,468.44

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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.