Home / 66,029.36-91,114.80-38,802.56

Finding the Fourth Proportional to 66,029.36, 91,114.80 and 38,802.56

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Solution

The fourth proportional to 66,029.36, 91,114.80 and 38,802.56 is: 53,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,029.36 : 91,114.80 = 38,802.56 : x
  2. Step 2: Convert to fraction form
    66,029.36/91,114.80 = 38,802.56/x
  3. Step 3: Cross multiply
    66,029.36x = 91,114.80 × 38,802.56
  4. Step 4: Simplify right side
    66,029.36x = 3,535,487,493.89
  5. Step 5: Solve for x
    x = 3,535,487,493.89/66,029.36
  6. Step 6: Final answer
    x = 53,544.17

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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.