Home / 42,504.22-63,756.44-20,312.55

Finding the Fourth Proportional to 42,504.22, 63,756.44 and 20,312.55

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Solution

The fourth proportional to 42,504.22, 63,756.44 and 20,312.55 is: 30,468.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,504.22 : 63,756.44 = 20,312.55 : x
  2. Step 2: Convert to fraction form
    42,504.22/63,756.44 = 20,312.55/x
  3. Step 3: Cross multiply
    42,504.22x = 63,756.44 × 20,312.55
  4. Step 4: Simplify right side
    42,504.22x = 1,295,055,875.32
  5. Step 5: Solve for x
    x = 1,295,055,875.32/42,504.22
  6. Step 6: Final answer
    x = 30,468.88

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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.