Home / 91,437.48-126,197.16-55,620.54

Finding the Fourth Proportional to 91,437.48, 126,197.16 and 55,620.54

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Solution

The fourth proportional to 91,437.48, 126,197.16 and 55,620.54 is: 76,764.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,437.48 : 126,197.16 = 55,620.54 : x
  2. Step 2: Convert to fraction form
    91,437.48/126,197.16 = 55,620.54/x
  3. Step 3: Cross multiply
    91,437.48x = 126,197.16 × 55,620.54
  4. Step 4: Simplify right side
    91,437.48x = 7,019,154,185.67
  5. Step 5: Solve for x
    x = 7,019,154,185.67/91,437.48
  6. Step 6: Final answer
    x = 76,764.52

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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.