Home / 42,380.12-63,570.18-30,767.15

Finding the Fourth Proportional to 42,380.12, 63,570.18 and 30,767.15

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Solution

The fourth proportional to 42,380.12, 63,570.18 and 30,767.15 is: 46,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,380.12 : 63,570.18 = 30,767.15 : x
  2. Step 2: Convert to fraction form
    42,380.12/63,570.18 = 30,767.15/x
  3. Step 3: Cross multiply
    42,380.12x = 63,570.18 × 30,767.15
  4. Step 4: Simplify right side
    42,380.12x = 1,955,872,945.74
  5. Step 5: Solve for x
    x = 1,955,872,945.74/42,380.12
  6. Step 6: Final answer
    x = 46,150.72

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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.