Home / 80,686.49-111,339.56-46,688.21

Finding the Fourth Proportional to 80,686.49, 111,339.56 and 46,688.21

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Solution

The fourth proportional to 80,686.49, 111,339.56 and 46,688.21 is: 64,425.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,686.49 : 111,339.56 = 46,688.21 : x
  2. Step 2: Convert to fraction form
    80,686.49/111,339.56 = 46,688.21/x
  3. Step 3: Cross multiply
    80,686.49x = 111,339.56 × 46,688.21
  4. Step 4: Simplify right side
    80,686.49x = 5,198,244,758.59
  5. Step 5: Solve for x
    x = 5,198,244,758.59/80,686.49
  6. Step 6: Final answer
    x = 64,425.22

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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.