Home / 86,532.36-129,034.72-83,448.64

Finding the Fourth Proportional to 86,532.36, 129,034.72 and 83,448.64

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Solution

The fourth proportional to 86,532.36, 129,034.72 and 83,448.64 is: 124,436.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,532.36 : 129,034.72 = 83,448.64 : x
  2. Step 2: Convert to fraction form
    86,532.36/129,034.72 = 83,448.64/x
  3. Step 3: Cross multiply
    86,532.36x = 129,034.72 × 83,448.64
  4. Step 4: Simplify right side
    86,532.36x = 10,767,771,896.78
  5. Step 5: Solve for x
    x = 10,767,771,896.78/86,532.36
  6. Step 6: Final answer
    x = 124,436.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.