Home / 55,122.12-82,685.91-15,685.04

Finding the Fourth Proportional to 55,122.12, 82,685.91 and 15,685.04

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Solution

The fourth proportional to 55,122.12, 82,685.91 and 15,685.04 is: 23,528.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,122.12 : 82,685.91 = 15,685.04 : x
  2. Step 2: Convert to fraction form
    55,122.12/82,685.91 = 15,685.04/x
  3. Step 3: Cross multiply
    55,122.12x = 82,685.91 × 15,685.04
  4. Step 4: Simplify right side
    55,122.12x = 1,296,932,071.32
  5. Step 5: Solve for x
    x = 1,296,932,071.32/55,122.12
  6. Step 6: Final answer
    x = 23,528.34

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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.