Home / 42,666.85-63,948.34-30,190.47

Finding the Fourth Proportional to 42,666.85, 63,948.34 and 30,190.47

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Solution

The fourth proportional to 42,666.85, 63,948.34 and 30,190.47 is: 45,248.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,666.85 : 63,948.34 = 30,190.47 : x
  2. Step 2: Convert to fraction form
    42,666.85/63,948.34 = 30,190.47/x
  3. Step 3: Cross multiply
    42,666.85x = 63,948.34 × 30,190.47
  4. Step 4: Simplify right side
    42,666.85x = 1,930,630,428.14
  5. Step 5: Solve for x
    x = 1,930,630,428.14/42,666.85
  6. Step 6: Final answer
    x = 45,248.95

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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.