Home / 86,942.24-130,420.32-27,786.32

Finding the Fourth Proportional to 86,942.24, 130,420.32 and 27,786.32

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Solution

The fourth proportional to 86,942.24, 130,420.32 and 27,786.32 is: 41,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,942.24 : 130,420.32 = 27,786.32 : x
  2. Step 2: Convert to fraction form
    86,942.24/130,420.32 = 27,786.32/x
  3. Step 3: Cross multiply
    86,942.24x = 130,420.32 × 27,786.32
  4. Step 4: Simplify right side
    86,942.24x = 3,623,900,746.02
  5. Step 5: Solve for x
    x = 3,623,900,746.02/86,942.24
  6. Step 6: Final answer
    x = 41,681.70

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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.