Home / 86,357.52-129,393.54-39,507.12

Finding the Fourth Proportional to 86,357.52, 129,393.54 and 39,507.12

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Solution

The fourth proportional to 86,357.52, 129,393.54 and 39,507.12 is: 59,195.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,357.52 : 129,393.54 = 39,507.12 : x
  2. Step 2: Convert to fraction form
    86,357.52/129,393.54 = 39,507.12/x
  3. Step 3: Cross multiply
    86,357.52x = 129,393.54 × 39,507.12
  4. Step 4: Simplify right side
    86,357.52x = 5,111,966,112.00
  5. Step 5: Solve for x
    x = 5,111,966,112.00/86,357.52
  6. Step 6: Final answer
    x = 59,195.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.