Home / 80,656.92-111,321.18-46,661.40

Finding the Fourth Proportional to 80,656.92, 111,321.18 and 46,661.40

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Solution

The fourth proportional to 80,656.92, 111,321.18 and 46,661.40 is: 64,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,656.92 : 111,321.18 = 46,661.40 : x
  2. Step 2: Convert to fraction form
    80,656.92/111,321.18 = 46,661.40/x
  3. Step 3: Cross multiply
    80,656.92x = 111,321.18 × 46,661.40
  4. Step 4: Simplify right side
    80,656.92x = 5,194,402,108.45
  5. Step 5: Solve for x
    x = 5,194,402,108.45/80,656.92
  6. Step 6: Final answer
    x = 64,401.20

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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.