Home / 47,472.87-65,486.52-30,458.12

Finding the Fourth Proportional to 47,472.87, 65,486.52 and 30,458.12

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Solution

The fourth proportional to 47,472.87, 65,486.52 and 30,458.12 is: 42,015.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,472.87 : 65,486.52 = 30,458.12 : x
  2. Step 2: Convert to fraction form
    47,472.87/65,486.52 = 30,458.12/x
  3. Step 3: Cross multiply
    47,472.87x = 65,486.52 × 30,458.12
  4. Step 4: Simplify right side
    47,472.87x = 1,994,595,957.11
  5. Step 5: Solve for x
    x = 1,994,595,957.11/47,472.87
  6. Step 6: Final answer
    x = 42,015.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.