Home / 86,485.18-129,717.04-23,310.24

Finding the Fourth Proportional to 86,485.18, 129,717.04 and 23,310.24

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Solution

The fourth proportional to 86,485.18, 129,717.04 and 23,310.24 is: 34,962.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,485.18 : 129,717.04 = 23,310.24 : x
  2. Step 2: Convert to fraction form
    86,485.18/129,717.04 = 23,310.24/x
  3. Step 3: Cross multiply
    86,485.18x = 129,717.04 × 23,310.24
  4. Step 4: Simplify right side
    86,485.18x = 3,023,735,217.94
  5. Step 5: Solve for x
    x = 3,023,735,217.94/86,485.18
  6. Step 6: Final answer
    x = 34,962.47

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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.