Home / 48,618.50-72,940.06-13,558.16

Finding the Fourth Proportional to 48,618.50, 72,940.06 and 13,558.16

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Solution

The fourth proportional to 48,618.50, 72,940.06 and 13,558.16 is: 20,340.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,618.50 : 72,940.06 = 13,558.16 : x
  2. Step 2: Convert to fraction form
    48,618.50/72,940.06 = 13,558.16/x
  3. Step 3: Cross multiply
    48,618.50x = 72,940.06 × 13,558.16
  4. Step 4: Simplify right side
    48,618.50x = 988,932,639.19
  5. Step 5: Solve for x
    x = 988,932,639.19/48,618.50
  6. Step 6: Final answer
    x = 20,340.67

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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.