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Finding the Fourth Proportional to 53,302.74, 79,939.51 and 20,020.23

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Solution

The fourth proportional to 53,302.74, 79,939.51 and 20,020.23 is: 30,024.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,302.74 : 79,939.51 = 20,020.23 : x
  2. Step 2: Convert to fraction form
    53,302.74/79,939.51 = 20,020.23/x
  3. Step 3: Cross multiply
    53,302.74x = 79,939.51 × 20,020.23
  4. Step 4: Simplify right side
    53,302.74x = 1,600,407,376.29
  5. Step 5: Solve for x
    x = 1,600,407,376.29/53,302.74
  6. Step 6: Final answer
    x = 30,024.86

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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.