Home / 98,069.76-135,331.20-53,356.80

Finding the Fourth Proportional to 98,069.76, 135,331.20 and 53,356.80

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Solution

The fourth proportional to 98,069.76, 135,331.20 and 53,356.80 is: 73,629.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,069.76 : 135,331.20 = 53,356.80 : x
  2. Step 2: Convert to fraction form
    98,069.76/135,331.20 = 53,356.80/x
  3. Step 3: Cross multiply
    98,069.76x = 135,331.20 × 53,356.80
  4. Step 4: Simplify right side
    98,069.76x = 7,220,839,772.16
  5. Step 5: Solve for x
    x = 7,220,839,772.16/98,069.76
  6. Step 6: Final answer
    x = 73,629.63

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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.