Home / 74,742.32-112,116.46-29,772.20

Finding the Fourth Proportional to 74,742.32, 112,116.46 and 29,772.20

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Solution

The fourth proportional to 74,742.32, 112,116.46 and 29,772.20 is: 44,659.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,742.32 : 112,116.46 = 29,772.20 : x
  2. Step 2: Convert to fraction form
    74,742.32/112,116.46 = 29,772.20/x
  3. Step 3: Cross multiply
    74,742.32x = 112,116.46 × 29,772.20
  4. Step 4: Simplify right side
    74,742.32x = 3,337,953,670.41
  5. Step 5: Solve for x
    x = 3,337,953,670.41/74,742.32
  6. Step 6: Final answer
    x = 44,659.49

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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.