Home / 77,019.86-106,284.07-43,028.21

Finding the Fourth Proportional to 77,019.86, 106,284.07 and 43,028.21

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Solution

The fourth proportional to 77,019.86, 106,284.07 and 43,028.21 is: 59,377.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,019.86 : 106,284.07 = 43,028.21 : x
  2. Step 2: Convert to fraction form
    77,019.86/106,284.07 = 43,028.21/x
  3. Step 3: Cross multiply
    77,019.86x = 106,284.07 × 43,028.21
  4. Step 4: Simplify right side
    77,019.86x = 4,573,213,283.61
  5. Step 5: Solve for x
    x = 4,573,213,283.61/77,019.86
  6. Step 6: Final answer
    x = 59,377.07

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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.