Home / 86,689.38-130,050.21-27,509.10

Finding the Fourth Proportional to 86,689.38, 130,050.21 and 27,509.10

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Solution

The fourth proportional to 86,689.38, 130,050.21 and 27,509.10 is: 41,268.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,689.38 : 130,050.21 = 27,509.10 : x
  2. Step 2: Convert to fraction form
    86,689.38/130,050.21 = 27,509.10/x
  3. Step 3: Cross multiply
    86,689.38x = 130,050.21 × 27,509.10
  4. Step 4: Simplify right side
    86,689.38x = 3,577,564,231.91
  5. Step 5: Solve for x
    x = 3,577,564,231.91/86,689.38
  6. Step 6: Final answer
    x = 41,268.77

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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.