Home / 74,771.39-103,158.67-47,928.71

Finding the Fourth Proportional to 74,771.39, 103,158.67 and 47,928.71

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Solution

The fourth proportional to 74,771.39, 103,158.67 and 47,928.71 is: 66,125.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,771.39 : 103,158.67 = 47,928.71 : x
  2. Step 2: Convert to fraction form
    74,771.39/103,158.67 = 47,928.71/x
  3. Step 3: Cross multiply
    74,771.39x = 103,158.67 × 47,928.71
  4. Step 4: Simplify right side
    74,771.39x = 4,944,261,342.80
  5. Step 5: Solve for x
    x = 4,944,261,342.80/74,771.39
  6. Step 6: Final answer
    x = 66,125.05

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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.