Home / 57,169.96-78,855.16-40,210.18

Finding the Fourth Proportional to 57,169.96, 78,855.16 and 40,210.18

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Solution

The fourth proportional to 57,169.96, 78,855.16 and 40,210.18 is: 55,462.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,169.96 : 78,855.16 = 40,210.18 : x
  2. Step 2: Convert to fraction form
    57,169.96/78,855.16 = 40,210.18/x
  3. Step 3: Cross multiply
    57,169.96x = 78,855.16 × 40,210.18
  4. Step 4: Simplify right side
    57,169.96x = 3,170,780,177.53
  5. Step 5: Solve for x
    x = 3,170,780,177.53/57,169.96
  6. Step 6: Final answer
    x = 55,462.35

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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.