Home / 86,719.23-130,087.53-23,540.40

Finding the Fourth Proportional to 86,719.23, 130,087.53 and 23,540.40

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Solution

The fourth proportional to 86,719.23, 130,087.53 and 23,540.40 is: 35,312.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,719.23 : 130,087.53 = 23,540.40 : x
  2. Step 2: Convert to fraction form
    86,719.23/130,087.53 = 23,540.40/x
  3. Step 3: Cross multiply
    86,719.23x = 130,087.53 × 23,540.40
  4. Step 4: Simplify right side
    86,719.23x = 3,062,312,491.21
  5. Step 5: Solve for x
    x = 3,062,312,491.21/86,719.23
  6. Step 6: Final answer
    x = 35,312.96

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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.