Home / 82,668.23-123,903.89-57,572.40

Finding the Fourth Proportional to 82,668.23, 123,903.89 and 57,572.40

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Solution

The fourth proportional to 82,668.23, 123,903.89 and 57,572.40 is: 86,290.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,668.23 : 123,903.89 = 57,572.40 : x
  2. Step 2: Convert to fraction form
    82,668.23/123,903.89 = 57,572.40/x
  3. Step 3: Cross multiply
    82,668.23x = 123,903.89 × 57,572.40
  4. Step 4: Simplify right side
    82,668.23x = 7,133,444,460.57
  5. Step 5: Solve for x
    x = 7,133,444,460.57/82,668.23
  6. Step 6: Final answer
    x = 86,290.04

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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.