Home / 57,710.10-79,589.74-40,684.30

Finding the Fourth Proportional to 57,710.10, 79,589.74 and 40,684.30

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Solution

The fourth proportional to 57,710.10, 79,589.74 and 40,684.30 is: 56,108.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,710.10 : 79,589.74 = 40,684.30 : x
  2. Step 2: Convert to fraction form
    57,710.10/79,589.74 = 40,684.30/x
  3. Step 3: Cross multiply
    57,710.10x = 79,589.74 × 40,684.30
  4. Step 4: Simplify right side
    57,710.10x = 3,238,052,859.08
  5. Step 5: Solve for x
    x = 3,238,052,859.08/57,710.10
  6. Step 6: Final answer
    x = 56,108.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.