Home / 42,755.32-64,008.30-28,539.64

Finding the Fourth Proportional to 42,755.32, 64,008.30 and 28,539.64

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Solution

The fourth proportional to 42,755.32, 64,008.30 and 28,539.64 is: 42,726.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,755.32 : 64,008.30 = 28,539.64 : x
  2. Step 2: Convert to fraction form
    42,755.32/64,008.30 = 28,539.64/x
  3. Step 3: Cross multiply
    42,755.32x = 64,008.30 × 28,539.64
  4. Step 4: Simplify right side
    42,755.32x = 1,826,773,839.01
  5. Step 5: Solve for x
    x = 1,826,773,839.01/42,755.32
  6. Step 6: Final answer
    x = 42,726.23

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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.