Home / 80,720.46-111,392.50-46,730.39

Finding the Fourth Proportional to 80,720.46, 111,392.50 and 46,730.39

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Solution

The fourth proportional to 80,720.46, 111,392.50 and 46,730.39 is: 64,486.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,720.46 : 111,392.50 = 46,730.39 : x
  2. Step 2: Convert to fraction form
    80,720.46/111,392.50 = 46,730.39/x
  3. Step 3: Cross multiply
    80,720.46x = 111,392.50 × 46,730.39
  4. Step 4: Simplify right side
    80,720.46x = 5,205,414,294.29
  5. Step 5: Solve for x
    x = 5,205,414,294.29/80,720.46
  6. Step 6: Final answer
    x = 64,486.93

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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.