Home / 67,919.68-101,303.02-66,738.70

Finding the Fourth Proportional to 67,919.68, 101,303.02 and 66,738.70

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Solution

The fourth proportional to 67,919.68, 101,303.02 and 66,738.70 is: 99,541.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,919.68 : 101,303.02 = 66,738.70 : x
  2. Step 2: Convert to fraction form
    67,919.68/101,303.02 = 66,738.70/x
  3. Step 3: Cross multiply
    67,919.68x = 101,303.02 × 66,738.70
  4. Step 4: Simplify right side
    67,919.68x = 6,760,831,860.87
  5. Step 5: Solve for x
    x = 6,760,831,860.87/67,919.68
  6. Step 6: Final answer
    x = 99,541.57

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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.