Home / 86,821.90-130,235.58-29,895.21

Finding the Fourth Proportional to 86,821.90, 130,235.58 and 29,895.21

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Solution

The fourth proportional to 86,821.90, 130,235.58 and 29,895.21 is: 44,843.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,821.90 : 130,235.58 = 29,895.21 : x
  2. Step 2: Convert to fraction form
    86,821.90/130,235.58 = 29,895.21/x
  3. Step 3: Cross multiply
    86,821.90x = 130,235.58 × 29,895.21
  4. Step 4: Simplify right side
    86,821.90x = 3,893,420,013.57
  5. Step 5: Solve for x
    x = 3,893,420,013.57/86,821.90
  6. Step 6: Final answer
    x = 44,843.76

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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.