Home / 45,034.80-67,540.28-13,437.36

Finding the Fourth Proportional to 45,034.80, 67,540.28 and 13,437.36

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Solution

The fourth proportional to 45,034.80, 67,540.28 and 13,437.36 is: 20,152.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,034.80 : 67,540.28 = 13,437.36 : x
  2. Step 2: Convert to fraction form
    45,034.80/67,540.28 = 13,437.36/x
  3. Step 3: Cross multiply
    45,034.80x = 67,540.28 × 13,437.36
  4. Step 4: Simplify right side
    45,034.80x = 907,563,056.86
  5. Step 5: Solve for x
    x = 907,563,056.86/45,034.80
  6. Step 6: Final answer
    x = 20,152.48

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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.