Home / 53,290.53-79,864.92-19,977.12

Finding the Fourth Proportional to 53,290.53, 79,864.92 and 19,977.12

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Solution

The fourth proportional to 53,290.53, 79,864.92 and 19,977.12 is: 29,939.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,290.53 : 79,864.92 = 19,977.12 : x
  2. Step 2: Convert to fraction form
    53,290.53/79,864.92 = 19,977.12/x
  3. Step 3: Cross multiply
    53,290.53x = 79,864.92 × 19,977.12
  4. Step 4: Simplify right side
    53,290.53x = 1,595,471,090.63
  5. Step 5: Solve for x
    x = 1,595,471,090.63/53,290.53
  6. Step 6: Final answer
    x = 29,939.11

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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.