Home / 77,211.87-106,554.18-43,219.51

Finding the Fourth Proportional to 77,211.87, 106,554.18 and 43,219.51

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Solution

The fourth proportional to 77,211.87, 106,554.18 and 43,219.51 is: 59,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,211.87 : 106,554.18 = 43,219.51 : x
  2. Step 2: Convert to fraction form
    77,211.87/106,554.18 = 43,219.51/x
  3. Step 3: Cross multiply
    77,211.87x = 106,554.18 × 43,219.51
  4. Step 4: Simplify right side
    77,211.87x = 4,605,219,448.05
  5. Step 5: Solve for x
    x = 4,605,219,448.05/77,211.87
  6. Step 6: Final answer
    x = 59,643.93

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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.