Home / 77,033.40-106,247.44-66,296.16

Finding the Fourth Proportional to 77,033.40, 106,247.44 and 66,296.16

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Solution

The fourth proportional to 77,033.40, 106,247.44 and 66,296.16 is: 91,438.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,033.40 : 106,247.44 = 66,296.16 : x
  2. Step 2: Convert to fraction form
    77,033.40/106,247.44 = 66,296.16/x
  3. Step 3: Cross multiply
    77,033.40x = 106,247.44 × 66,296.16
  4. Step 4: Simplify right side
    77,033.40x = 7,043,797,281.83
  5. Step 5: Solve for x
    x = 7,043,797,281.83/77,033.40
  6. Step 6: Final answer
    x = 91,438.22

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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.