Home / 64,890.08-97,288.37-39,878.43

Finding the Fourth Proportional to 64,890.08, 97,288.37 and 39,878.43

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Solution

The fourth proportional to 64,890.08, 97,288.37 and 39,878.43 is: 59,788.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,890.08 : 97,288.37 = 39,878.43 : x
  2. Step 2: Convert to fraction form
    64,890.08/97,288.37 = 39,878.43/x
  3. Step 3: Cross multiply
    64,890.08x = 97,288.37 × 39,878.43
  4. Step 4: Simplify right side
    64,890.08x = 3,879,707,452.86
  5. Step 5: Solve for x
    x = 3,879,707,452.86/64,890.08
  6. Step 6: Final answer
    x = 59,788.91

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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.