Home / 42,140.21-63,219.72-15,845.18

Finding the Fourth Proportional to 42,140.21, 63,219.72 and 15,845.18

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Solution

The fourth proportional to 42,140.21, 63,219.72 and 15,845.18 is: 23,771.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,140.21 : 63,219.72 = 15,845.18 : x
  2. Step 2: Convert to fraction form
    42,140.21/63,219.72 = 15,845.18/x
  3. Step 3: Cross multiply
    42,140.21x = 63,219.72 × 15,845.18
  4. Step 4: Simplify right side
    42,140.21x = 1,001,727,526.85
  5. Step 5: Solve for x
    x = 1,001,727,526.85/42,140.21
  6. Step 6: Final answer
    x = 23,771.30

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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.