Home / 64,788.24-89,354.91-54,399.90

Finding the Fourth Proportional to 64,788.24, 89,354.91 and 54,399.90

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Solution

The fourth proportional to 64,788.24, 89,354.91 and 54,399.90 is: 75,027.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,788.24 : 89,354.91 = 54,399.90 : x
  2. Step 2: Convert to fraction form
    64,788.24/89,354.91 = 54,399.90/x
  3. Step 3: Cross multiply
    64,788.24x = 89,354.91 × 54,399.90
  4. Step 4: Simplify right side
    64,788.24x = 4,860,898,168.51
  5. Step 5: Solve for x
    x = 4,860,898,168.51/64,788.24
  6. Step 6: Final answer
    x = 75,027.48

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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.