Home / 82,719.28-124,018.43-26,527.40

Finding the Fourth Proportional to 82,719.28, 124,018.43 and 26,527.40

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Solution

The fourth proportional to 82,719.28, 124,018.43 and 26,527.40 is: 39,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,719.28 : 124,018.43 = 26,527.40 : x
  2. Step 2: Convert to fraction form
    82,719.28/124,018.43 = 26,527.40/x
  3. Step 3: Cross multiply
    82,719.28x = 124,018.43 × 26,527.40
  4. Step 4: Simplify right side
    82,719.28x = 3,289,886,212.32
  5. Step 5: Solve for x
    x = 3,289,886,212.32/82,719.28
  6. Step 6: Final answer
    x = 39,771.70

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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.