Home / 91,661.06-126,500.40-53,418.50

Finding the Fourth Proportional to 91,661.06, 126,500.40 and 53,418.50

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Solution

The fourth proportional to 91,661.06, 126,500.40 and 53,418.50 is: 73,722.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,661.06 : 126,500.40 = 53,418.50 : x
  2. Step 2: Convert to fraction form
    91,661.06/126,500.40 = 53,418.50/x
  3. Step 3: Cross multiply
    91,661.06x = 126,500.40 × 53,418.50
  4. Step 4: Simplify right side
    91,661.06x = 6,757,461,617.40
  5. Step 5: Solve for x
    x = 6,757,461,617.40/91,661.06
  6. Step 6: Final answer
    x = 73,722.27

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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.