Home / 42,158.64-63,259.83-18,779.61

Finding the Fourth Proportional to 42,158.64, 63,259.83 and 18,779.61

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Solution

The fourth proportional to 42,158.64, 63,259.83 and 18,779.61 is: 28,179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,158.64 : 63,259.83 = 18,779.61 : x
  2. Step 2: Convert to fraction form
    42,158.64/63,259.83 = 18,779.61/x
  3. Step 3: Cross multiply
    42,158.64x = 63,259.83 × 18,779.61
  4. Step 4: Simplify right side
    42,158.64x = 1,187,994,936.07
  5. Step 5: Solve for x
    x = 1,187,994,936.07/42,158.64
  6. Step 6: Final answer
    x = 28,179.16

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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.