Home / 80,781.95-111,479.03-46,792.32

Finding the Fourth Proportional to 80,781.95, 111,479.03 and 46,792.32

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Solution

The fourth proportional to 80,781.95, 111,479.03 and 46,792.32 is: 64,573.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,781.95 : 111,479.03 = 46,792.32 : x
  2. Step 2: Convert to fraction form
    80,781.95/111,479.03 = 46,792.32/x
  3. Step 3: Cross multiply
    80,781.95x = 111,479.03 × 46,792.32
  4. Step 4: Simplify right side
    80,781.95x = 5,216,362,445.05
  5. Step 5: Solve for x
    x = 5,216,362,445.05/80,781.95
  6. Step 6: Final answer
    x = 64,573.37

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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.