Home / 67,403.07-92,987.39-40,529.70

Finding the Fourth Proportional to 67,403.07, 92,987.39 and 40,529.70

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Solution

The fourth proportional to 67,403.07, 92,987.39 and 40,529.70 is: 55,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,403.07 : 92,987.39 = 40,529.70 : x
  2. Step 2: Convert to fraction form
    67,403.07/92,987.39 = 40,529.70/x
  3. Step 3: Cross multiply
    67,403.07x = 92,987.39 × 40,529.70
  4. Step 4: Simplify right side
    67,403.07x = 3,768,751,121.81
  5. Step 5: Solve for x
    x = 3,768,751,121.81/67,403.07
  6. Step 6: Final answer
    x = 55,913.64

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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.