Home / 45,263.55-67,902.90-18,970.29

Finding the Fourth Proportional to 45,263.55, 67,902.90 and 18,970.29

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Solution

The fourth proportional to 45,263.55, 67,902.90 and 18,970.29 is: 28,458.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,263.55 : 67,902.90 = 18,970.29 : x
  2. Step 2: Convert to fraction form
    45,263.55/67,902.90 = 18,970.29/x
  3. Step 3: Cross multiply
    45,263.55x = 67,902.90 × 18,970.29
  4. Step 4: Simplify right side
    45,263.55x = 1,288,137,704.84
  5. Step 5: Solve for x
    x = 1,288,137,704.84/45,263.55
  6. Step 6: Final answer
    x = 28,458.61

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1.5x scale

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.