Home / 86,923.40-130,346.70-40,190.60

Finding the Fourth Proportional to 86,923.40, 130,346.70 and 40,190.60

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Solution

The fourth proportional to 86,923.40, 130,346.70 and 40,190.60 is: 60,268.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,923.40 : 130,346.70 = 40,190.60 : x
  2. Step 2: Convert to fraction form
    86,923.40/130,346.70 = 40,190.60/x
  3. Step 3: Cross multiply
    86,923.40x = 130,346.70 × 40,190.60
  4. Step 4: Simplify right side
    86,923.40x = 5,238,712,081.02
  5. Step 5: Solve for x
    x = 5,238,712,081.02/86,923.40
  6. Step 6: Final answer
    x = 60,268.15

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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.