Home / 53,302.78-79,981.96-21,736.16

Finding the Fourth Proportional to 53,302.78, 79,981.96 and 21,736.16

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Solution

The fourth proportional to 53,302.78, 79,981.96 and 21,736.16 is: 32,615.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,302.78 : 79,981.96 = 21,736.16 : x
  2. Step 2: Convert to fraction form
    53,302.78/79,981.96 = 21,736.16/x
  3. Step 3: Cross multiply
    53,302.78x = 79,981.96 × 21,736.16
  4. Step 4: Simplify right side
    53,302.78x = 1,738,500,679.67
  5. Step 5: Solve for x
    x = 1,738,500,679.67/53,302.78
  6. Step 6: Final answer
    x = 32,615.57

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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.