Home / 51,479.86-71,038.74-28,508.04

Finding the Fourth Proportional to 51,479.86, 71,038.74 and 28,508.04

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Solution

The fourth proportional to 51,479.86, 71,038.74 and 28,508.04 is: 39,339.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,479.86 : 71,038.74 = 28,508.04 : x
  2. Step 2: Convert to fraction form
    51,479.86/71,038.74 = 28,508.04/x
  3. Step 3: Cross multiply
    51,479.86x = 71,038.74 × 28,508.04
  4. Step 4: Simplify right side
    51,479.86x = 2,025,174,815.01
  5. Step 5: Solve for x
    x = 2,025,174,815.01/51,479.86
  6. Step 6: Final answer
    x = 39,339.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.