Home / 67,943.05-101,457.05-55,487.80

Finding the Fourth Proportional to 67,943.05, 101,457.05 and 55,487.80

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Solution

The fourth proportional to 67,943.05, 101,457.05 and 55,487.80 is: 82,858.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,943.05 : 101,457.05 = 55,487.80 : x
  2. Step 2: Convert to fraction form
    67,943.05/101,457.05 = 55,487.80/x
  3. Step 3: Cross multiply
    67,943.05x = 101,457.05 × 55,487.80
  4. Step 4: Simplify right side
    67,943.05x = 5,629,628,498.99
  5. Step 5: Solve for x
    x = 5,629,628,498.99/67,943.05
  6. Step 6: Final answer
    x = 82,858.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.