Home / 52,050.56-78,079.68-18,790.40

Finding the Fourth Proportional to 52,050.56, 78,079.68 and 18,790.40

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Solution

The fourth proportional to 52,050.56, 78,079.68 and 18,790.40 is: 28,186.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,050.56 : 78,079.68 = 18,790.40 : x
  2. Step 2: Convert to fraction form
    52,050.56/78,079.68 = 18,790.40/x
  3. Step 3: Cross multiply
    52,050.56x = 78,079.68 × 18,790.40
  4. Step 4: Simplify right side
    52,050.56x = 1,467,148,419.07
  5. Step 5: Solve for x
    x = 1,467,148,419.07/52,050.56
  6. Step 6: Final answer
    x = 28,186.99

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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.