Home / 42,490.08-63,756.54-30,089.79

Finding the Fourth Proportional to 42,490.08, 63,756.54 and 30,089.79

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Solution

The fourth proportional to 42,490.08, 63,756.54 and 30,089.79 is: 45,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,490.08 : 63,756.54 = 30,089.79 : x
  2. Step 2: Convert to fraction form
    42,490.08/63,756.54 = 30,089.79/x
  3. Step 3: Cross multiply
    42,490.08x = 63,756.54 × 30,089.79
  4. Step 4: Simplify right side
    42,490.08x = 1,918,420,899.73
  5. Step 5: Solve for x
    x = 1,918,420,899.73/42,490.08
  6. Step 6: Final answer
    x = 45,149.85

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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.