Home / 45,639.05-62,948.54-30,505.11

Finding the Fourth Proportional to 45,639.05, 62,948.54 and 30,505.11

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Solution

The fourth proportional to 45,639.05, 62,948.54 and 30,505.11 is: 42,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,639.05 : 62,948.54 = 30,505.11 : x
  2. Step 2: Convert to fraction form
    45,639.05/62,948.54 = 30,505.11/x
  3. Step 3: Cross multiply
    45,639.05x = 62,948.54 × 30,505.11
  4. Step 4: Simplify right side
    45,639.05x = 1,920,251,977.25
  5. Step 5: Solve for x
    x = 1,920,251,977.25/45,639.05
  6. Step 6: Final answer
    x = 42,074.76

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1.5x scale

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.