Home / 87,083.12-130,643.15-27,960.32

Finding the Fourth Proportional to 87,083.12, 130,643.15 and 27,960.32

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Solution

The fourth proportional to 87,083.12, 130,643.15 and 27,960.32 is: 41,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,083.12 : 130,643.15 = 27,960.32 : x
  2. Step 2: Convert to fraction form
    87,083.12/130,643.15 = 27,960.32/x
  3. Step 3: Cross multiply
    87,083.12x = 130,643.15 × 27,960.32
  4. Step 4: Simplify right side
    87,083.12x = 3,652,823,486.79
  5. Step 5: Solve for x
    x = 3,652,823,486.79/87,083.12
  6. Step 6: Final answer
    x = 41,946.40

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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.