Home / 69,328.40-103,718.98-52,509.86

Finding the Fourth Proportional to 69,328.40, 103,718.98 and 52,509.86

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Solution

The fourth proportional to 69,328.40, 103,718.98 and 52,509.86 is: 78,557.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,328.40 : 103,718.98 = 52,509.86 : x
  2. Step 2: Convert to fraction form
    69,328.40/103,718.98 = 52,509.86/x
  3. Step 3: Cross multiply
    69,328.40x = 103,718.98 × 52,509.86
  4. Step 4: Simplify right side
    69,328.40x = 5,446,268,860.66
  5. Step 5: Solve for x
    x = 5,446,268,860.66/69,328.40
  6. Step 6: Final answer
    x = 78,557.54

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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.