Home / 64,720.13-96,939.97-31,370.42

Finding the Fourth Proportional to 64,720.13, 96,939.97 and 31,370.42

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Solution

The fourth proportional to 64,720.13, 96,939.97 and 31,370.42 is: 46,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,720.13 : 96,939.97 = 31,370.42 : x
  2. Step 2: Convert to fraction form
    64,720.13/96,939.97 = 31,370.42/x
  3. Step 3: Cross multiply
    64,720.13x = 96,939.97 × 31,370.42
  4. Step 4: Simplify right side
    64,720.13x = 3,041,047,737.61
  5. Step 5: Solve for x
    x = 3,041,047,737.61/64,720.13
  6. Step 6: Final answer
    x = 46,987.67

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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.