Home / 80,846.08-121,325.76-45,270.40

Finding the Fourth Proportional to 80,846.08, 121,325.76 and 45,270.40

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Solution

The fourth proportional to 80,846.08, 121,325.76 and 45,270.40 is: 67,937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,846.08 : 121,325.76 = 45,270.40 : x
  2. Step 2: Convert to fraction form
    80,846.08/121,325.76 = 45,270.40/x
  3. Step 3: Cross multiply
    80,846.08x = 121,325.76 × 45,270.40
  4. Step 4: Simplify right side
    80,846.08x = 5,492,465,685.50
  5. Step 5: Solve for x
    x = 5,492,465,685.50/80,846.08
  6. Step 6: Final answer
    x = 67,937.32

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1.5x scale

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.