Home / 84,547.43-126,823.20-28,389.37

Finding the Fourth Proportional to 84,547.43, 126,823.20 and 28,389.37

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Solution

The fourth proportional to 84,547.43, 126,823.20 and 28,389.37 is: 42,584.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,547.43 : 126,823.20 = 28,389.37 : x
  2. Step 2: Convert to fraction form
    84,547.43/126,823.20 = 28,389.37/x
  3. Step 3: Cross multiply
    84,547.43x = 126,823.20 × 28,389.37
  4. Step 4: Simplify right side
    84,547.43x = 3,600,430,749.38
  5. Step 5: Solve for x
    x = 3,600,430,749.38/84,547.43
  6. Step 6: Final answer
    x = 42,584.75

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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.