Home / 45,253.20-67,916.56-18,976.40

Finding the Fourth Proportional to 45,253.20, 67,916.56 and 18,976.40

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Solution

The fourth proportional to 45,253.20, 67,916.56 and 18,976.40 is: 28,480.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,253.20 : 67,916.56 = 18,976.40 : x
  2. Step 2: Convert to fraction form
    45,253.20/67,916.56 = 18,976.40/x
  3. Step 3: Cross multiply
    45,253.20x = 67,916.56 × 18,976.40
  4. Step 4: Simplify right side
    45,253.20x = 1,288,811,809.18
  5. Step 5: Solve for x
    x = 1,288,811,809.18/45,253.20
  6. Step 6: Final answer
    x = 28,480.01

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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.