Home / 64,486.48-96,749.16-20,117.92

Finding the Fourth Proportional to 64,486.48, 96,749.16 and 20,117.92

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Solution

The fourth proportional to 64,486.48, 96,749.16 and 20,117.92 is: 30,182.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,486.48 : 96,749.16 = 20,117.92 : x
  2. Step 2: Convert to fraction form
    64,486.48/96,749.16 = 20,117.92/x
  3. Step 3: Cross multiply
    64,486.48x = 96,749.16 × 20,117.92
  4. Step 4: Simplify right side
    64,486.48x = 1,946,391,860.95
  5. Step 5: Solve for x
    x = 1,946,391,860.95/64,486.48
  6. Step 6: Final answer
    x = 30,182.94

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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.