Home / 53,218.94-79,840.92-18,158.72

Finding the Fourth Proportional to 53,218.94, 79,840.92 and 18,158.72

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Solution

The fourth proportional to 53,218.94, 79,840.92 and 18,158.72 is: 27,242.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,218.94 : 79,840.92 = 18,158.72 : x
  2. Step 2: Convert to fraction form
    53,218.94/79,840.92 = 18,158.72/x
  3. Step 3: Cross multiply
    53,218.94x = 79,840.92 × 18,158.72
  4. Step 4: Simplify right side
    53,218.94x = 1,449,808,910.82
  5. Step 5: Solve for x
    x = 1,449,808,910.82/53,218.94
  6. Step 6: Final answer
    x = 27,242.35

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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.