Home / 91,112.42-125,664.08-59,291.58

Finding the Fourth Proportional to 91,112.42, 125,664.08 and 59,291.58

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Solution

The fourth proportional to 91,112.42, 125,664.08 and 59,291.58 is: 81,776.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,112.42 : 125,664.08 = 59,291.58 : x
  2. Step 2: Convert to fraction form
    91,112.42/125,664.08 = 59,291.58/x
  3. Step 3: Cross multiply
    91,112.42x = 125,664.08 × 59,291.58
  4. Step 4: Simplify right side
    91,112.42x = 7,450,821,852.45
  5. Step 5: Solve for x
    x = 7,450,821,852.45/91,112.42
  6. Step 6: Final answer
    x = 81,776.14

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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.