Home / 69,148.16-103,728.66-53,583.20

Finding the Fourth Proportional to 69,148.16, 103,728.66 and 53,583.20

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Solution

The fourth proportional to 69,148.16, 103,728.66 and 53,583.20 is: 80,379.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,148.16 : 103,728.66 = 53,583.20 : x
  2. Step 2: Convert to fraction form
    69,148.16/103,728.66 = 53,583.20/x
  3. Step 3: Cross multiply
    69,148.16x = 103,728.66 × 53,583.20
  4. Step 4: Simplify right side
    69,148.16x = 5,558,113,534.51
  5. Step 5: Solve for x
    x = 5,558,113,534.51/69,148.16
  6. Step 6: Final answer
    x = 80,379.77

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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.