Home / 91,357.22-126,075.74-51,072.68

Finding the Fourth Proportional to 91,357.22, 126,075.74 and 51,072.68

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Solution

The fourth proportional to 91,357.22, 126,075.74 and 51,072.68 is: 70,481.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,357.22 : 126,075.74 = 51,072.68 : x
  2. Step 2: Convert to fraction form
    91,357.22/126,075.74 = 51,072.68/x
  3. Step 3: Cross multiply
    91,357.22x = 126,075.74 × 51,072.68
  4. Step 4: Simplify right side
    91,357.22x = 6,439,025,039.04
  5. Step 5: Solve for x
    x = 6,439,025,039.04/91,357.22
  6. Step 6: Final answer
    x = 70,481.84

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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.