Home / 53,238.56-79,871.35-19,958.72

Finding the Fourth Proportional to 53,238.56, 79,871.35 and 19,958.72

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Solution

The fourth proportional to 53,238.56, 79,871.35 and 19,958.72 is: 29,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,238.56 : 79,871.35 = 19,958.72 : x
  2. Step 2: Convert to fraction form
    53,238.56/79,871.35 = 19,958.72/x
  3. Step 3: Cross multiply
    53,238.56x = 79,871.35 × 19,958.72
  4. Step 4: Simplify right side
    53,238.56x = 1,594,130,060.45
  5. Step 5: Solve for x
    x = 1,594,130,060.45/53,238.56
  6. Step 6: Final answer
    x = 29,943.15

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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.