Home / 52,069.96-78,088.80-18,785.70

Finding the Fourth Proportional to 52,069.96, 78,088.80 and 18,785.70

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Solution

The fourth proportional to 52,069.96, 78,088.80 and 18,785.70 is: 28,172.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,069.96 : 78,088.80 = 18,785.70 : x
  2. Step 2: Convert to fraction form
    52,069.96/78,088.80 = 18,785.70/x
  3. Step 3: Cross multiply
    52,069.96x = 78,088.80 × 18,785.70
  4. Step 4: Simplify right side
    52,069.96x = 1,466,952,770.16
  5. Step 5: Solve for x
    x = 1,466,952,770.16/52,069.96
  6. Step 6: Final answer
    x = 28,172.73

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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.