Home / 52,498.83-78,742.40-18,757.61

Finding the Fourth Proportional to 52,498.83, 78,742.40 and 18,757.61

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Solution

The fourth proportional to 52,498.83, 78,742.40 and 18,757.61 is: 28,134.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,498.83 : 78,742.40 = 18,757.61 : x
  2. Step 2: Convert to fraction form
    52,498.83/78,742.40 = 18,757.61/x
  3. Step 3: Cross multiply
    52,498.83x = 78,742.40 × 18,757.61
  4. Step 4: Simplify right side
    52,498.83x = 1,477,018,742.16
  5. Step 5: Solve for x
    x = 1,477,018,742.16/52,498.83
  6. Step 6: Final answer
    x = 28,134.32

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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.