Home / 80,421.12-110,986.24-46,435.92

Finding the Fourth Proportional to 80,421.12, 110,986.24 and 46,435.92

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Solution

The fourth proportional to 80,421.12, 110,986.24 and 46,435.92 is: 64,084.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,421.12 : 110,986.24 = 46,435.92 : x
  2. Step 2: Convert to fraction form
    80,421.12/110,986.24 = 46,435.92/x
  3. Step 3: Cross multiply
    80,421.12x = 110,986.24 × 46,435.92
  4. Step 4: Simplify right side
    80,421.12x = 5,153,748,161.74
  5. Step 5: Solve for x
    x = 5,153,748,161.74/80,421.12
  6. Step 6: Final answer
    x = 64,084.51

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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.