Home / 86,669.10-130,003.65-27,509.40

Finding the Fourth Proportional to 86,669.10, 130,003.65 and 27,509.40

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Solution

The fourth proportional to 86,669.10, 130,003.65 and 27,509.40 is: 41,264.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,669.10 : 130,003.65 = 27,509.40 : x
  2. Step 2: Convert to fraction form
    86,669.10/130,003.65 = 27,509.40/x
  3. Step 3: Cross multiply
    86,669.10x = 130,003.65 × 27,509.40
  4. Step 4: Simplify right side
    86,669.10x = 3,576,322,409.31
  5. Step 5: Solve for x
    x = 3,576,322,409.31/86,669.10
  6. Step 6: Final answer
    x = 41,264.10

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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.