Home / 42,536.90-63,740.67-20,319.68

Finding the Fourth Proportional to 42,536.90, 63,740.67 and 20,319.68

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Solution

The fourth proportional to 42,536.90, 63,740.67 and 20,319.68 is: 30,448.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,536.90 : 63,740.67 = 20,319.68 : x
  2. Step 2: Convert to fraction form
    42,536.90/63,740.67 = 20,319.68/x
  3. Step 3: Cross multiply
    42,536.90x = 63,740.67 × 20,319.68
  4. Step 4: Simplify right side
    42,536.90x = 1,295,189,698.68
  5. Step 5: Solve for x
    x = 1,295,189,698.68/42,536.90
  6. Step 6: Final answer
    x = 30,448.62

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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.