Home / 285,541.07-428,010.21-95,821.55

Finding the Fourth Proportional to 285,541.07, 428,010.21 and 95,821.55

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Solution

The fourth proportional to 285,541.07, 428,010.21 and 95,821.55 is: 143,631.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,541.07 : 428,010.21 = 95,821.55 : x
  2. Step 2: Convert to fraction form
    285,541.07/428,010.21 = 95,821.55/x
  3. Step 3: Cross multiply
    285,541.07x = 428,010.21 × 95,821.55
  4. Step 4: Simplify right side
    285,541.07x = 41,012,603,610.57
  5. Step 5: Solve for x
    x = 41,012,603,610.57/285,541.07
  6. Step 6: Final answer
    x = 143,631.19

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1.5x scale

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.