Home / 45,263.80-67,903.26-18,970.53

Finding the Fourth Proportional to 45,263.80, 67,903.26 and 18,970.53

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Solution

The fourth proportional to 45,263.80, 67,903.26 and 18,970.53 is: 28,458.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,263.80 : 67,903.26 = 18,970.53 : x
  2. Step 2: Convert to fraction form
    45,263.80/67,903.26 = 18,970.53/x
  3. Step 3: Cross multiply
    45,263.80x = 67,903.26 × 18,970.53
  4. Step 4: Simplify right side
    45,263.80x = 1,288,160,830.93
  5. Step 5: Solve for x
    x = 1,288,160,830.93/45,263.80
  6. Step 6: Final answer
    x = 28,458.96

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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.