Home / 86,644.26-130,017.42-36,720.72

Finding the Fourth Proportional to 86,644.26, 130,017.42 and 36,720.72

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Solution

The fourth proportional to 86,644.26, 130,017.42 and 36,720.72 is: 55,102.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,644.26 : 130,017.42 = 36,720.72 : x
  2. Step 2: Convert to fraction form
    86,644.26/130,017.42 = 36,720.72/x
  3. Step 3: Cross multiply
    86,644.26x = 130,017.42 × 36,720.72
  4. Step 4: Simplify right side
    86,644.26x = 4,774,333,274.94
  5. Step 5: Solve for x
    x = 4,774,333,274.94/86,644.26
  6. Step 6: Final answer
    x = 55,102.71

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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.