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Finding the Fourth Proportional to 75,014.70, 112,435.65 and 30,612.30

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Solution

The fourth proportional to 75,014.70, 112,435.65 and 30,612.30 is: 45,883.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,014.70 : 112,435.65 = 30,612.30 : x
  2. Step 2: Convert to fraction form
    75,014.70/112,435.65 = 30,612.30/x
  3. Step 3: Cross multiply
    75,014.70x = 112,435.65 × 30,612.30
  4. Step 4: Simplify right side
    75,014.70x = 3,441,913,848.50
  5. Step 5: Solve for x
    x = 3,441,913,848.50/75,014.70
  6. Step 6: Final answer
    x = 45,883.19

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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.