Home / 78,288.12-108,089.64-46,467.27

Finding the Fourth Proportional to 78,288.12, 108,089.64 and 46,467.27

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Solution

The fourth proportional to 78,288.12, 108,089.64 and 46,467.27 is: 64,155.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,288.12 : 108,089.64 = 46,467.27 : x
  2. Step 2: Convert to fraction form
    78,288.12/108,089.64 = 46,467.27/x
  3. Step 3: Cross multiply
    78,288.12x = 108,089.64 × 46,467.27
  4. Step 4: Simplify right side
    78,288.12x = 5,022,630,486.08
  5. Step 5: Solve for x
    x = 5,022,630,486.08/78,288.12
  6. Step 6: Final answer
    x = 64,155.72

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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.