Home / 80,834.93-121,199.58-38,713.64

Finding the Fourth Proportional to 80,834.93, 121,199.58 and 38,713.64

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Solution

The fourth proportional to 80,834.93, 121,199.58 and 38,713.64 is: 58,045.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,834.93 : 121,199.58 = 38,713.64 : x
  2. Step 2: Convert to fraction form
    80,834.93/121,199.58 = 38,713.64/x
  3. Step 3: Cross multiply
    80,834.93x = 121,199.58 × 38,713.64
  4. Step 4: Simplify right side
    80,834.93x = 4,692,076,302.27
  5. Step 5: Solve for x
    x = 4,692,076,302.27/80,834.93
  6. Step 6: Final answer
    x = 58,045.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.