Home / 48,389.49-72,555.98-18,772.72

Finding the Fourth Proportional to 48,389.49, 72,555.98 and 18,772.72

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Solution

The fourth proportional to 48,389.49, 72,555.98 and 18,772.72 is: 28,148.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,389.49 : 72,555.98 = 18,772.72 : x
  2. Step 2: Convert to fraction form
    48,389.49/72,555.98 = 18,772.72/x
  3. Step 3: Cross multiply
    48,389.49x = 72,555.98 × 18,772.72
  4. Step 4: Simplify right side
    48,389.49x = 1,362,073,096.87
  5. Step 5: Solve for x
    x = 1,362,073,096.87/48,389.49
  6. Step 6: Final answer
    x = 28,148.12

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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.