Home / 57,480.39-79,325.91-31,986.81

Finding the Fourth Proportional to 57,480.39, 79,325.91 and 31,986.81

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Solution

The fourth proportional to 57,480.39, 79,325.91 and 31,986.81 is: 44,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,480.39 : 79,325.91 = 31,986.81 : x
  2. Step 2: Convert to fraction form
    57,480.39/79,325.91 = 31,986.81/x
  3. Step 3: Cross multiply
    57,480.39x = 79,325.91 × 31,986.81
  4. Step 4: Simplify right side
    57,480.39x = 2,537,382,811.25
  5. Step 5: Solve for x
    x = 2,537,382,811.25/57,480.39
  6. Step 6: Final answer
    x = 44,143.45

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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.