Home / 42,267.76-63,308.19-28,909.09

Finding the Fourth Proportional to 42,267.76, 63,308.19 and 28,909.09

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Solution

The fourth proportional to 42,267.76, 63,308.19 and 28,909.09 is: 43,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,267.76 : 63,308.19 = 28,909.09 : x
  2. Step 2: Convert to fraction form
    42,267.76/63,308.19 = 28,909.09/x
  3. Step 3: Cross multiply
    42,267.76x = 63,308.19 × 28,909.09
  4. Step 4: Simplify right side
    42,267.76x = 1,830,182,162.45
  5. Step 5: Solve for x
    x = 1,830,182,162.45/42,267.76
  6. Step 6: Final answer
    x = 43,299.72

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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.