Home / 91,345.09-126,095.07-55,546.60

Finding the Fourth Proportional to 91,345.09, 126,095.07 and 55,546.60

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Solution

The fourth proportional to 91,345.09, 126,095.07 and 55,546.60 is: 76,677.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,345.09 : 126,095.07 = 55,546.60 : x
  2. Step 2: Convert to fraction form
    91,345.09/126,095.07 = 55,546.60/x
  3. Step 3: Cross multiply
    91,345.09x = 126,095.07 × 55,546.60
  4. Step 4: Simplify right side
    91,345.09x = 7,004,152,415.26
  5. Step 5: Solve for x
    x = 7,004,152,415.26/91,345.09
  6. Step 6: Final answer
    x = 76,677.93

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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.