Home / 91,115.08-125,739-50,827.84

Finding the Fourth Proportional to 91,115.08, 125,739 and 50,827.84

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Solution

The fourth proportional to 91,115.08, 125,739 and 50,827.84 is: 70,142.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,115.08 : 125,739 = 50,827.84 : x
  2. Step 2: Convert to fraction form
    91,115.08/125,739 = 50,827.84/x
  3. Step 3: Cross multiply
    91,115.08x = 125,739 × 50,827.84
  4. Step 4: Simplify right side
    91,115.08x = 6,391,041,773.76
  5. Step 5: Solve for x
    x = 6,391,041,773.76/91,115.08
  6. Step 6: Final answer
    x = 70,142.52

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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.