Home / 286,743.24-430,087.02-87,065.33

Finding the Fourth Proportional to 286,743.24, 430,087.02 and 87,065.33

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Solution

The fourth proportional to 286,743.24, 430,087.02 and 87,065.33 is: 130,589.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,743.24 : 430,087.02 = 87,065.33 : x
  2. Step 2: Convert to fraction form
    286,743.24/430,087.02 = 87,065.33/x
  3. Step 3: Cross multiply
    286,743.24x = 430,087.02 × 87,065.33
  4. Step 4: Simplify right side
    286,743.24x = 37,445,668,267.33
  5. Step 5: Solve for x
    x = 37,445,668,267.33/286,743.24
  6. Step 6: Final answer
    x = 130,589.54

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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.