Home / 91,143.16-125,768.02-50,306.54

Finding the Fourth Proportional to 91,143.16, 125,768.02 and 50,306.54

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Solution

The fourth proportional to 91,143.16, 125,768.02 and 50,306.54 is: 69,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,143.16 : 125,768.02 = 50,306.54 : x
  2. Step 2: Convert to fraction form
    91,143.16/125,768.02 = 50,306.54/x
  3. Step 3: Cross multiply
    91,143.16x = 125,768.02 × 50,306.54
  4. Step 4: Simplify right side
    91,143.16x = 6,326,953,928.85
  5. Step 5: Solve for x
    x = 6,326,953,928.85/91,143.16
  6. Step 6: Final answer
    x = 69,417.76

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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.