Home / 53,142.08-79,717.23-21,537.09

Finding the Fourth Proportional to 53,142.08, 79,717.23 and 21,537.09

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Solution

The fourth proportional to 53,142.08, 79,717.23 and 21,537.09 is: 32,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,142.08 : 79,717.23 = 21,537.09 : x
  2. Step 2: Convert to fraction form
    53,142.08/79,717.23 = 21,537.09/x
  3. Step 3: Cross multiply
    53,142.08x = 79,717.23 × 21,537.09
  4. Step 4: Simplify right side
    53,142.08x = 1,716,877,157.06
  5. Step 5: Solve for x
    x = 1,716,877,157.06/53,142.08
  6. Step 6: Final answer
    x = 32,307.30

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1.5x scale

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.