Home / 56,918.85-85,378.28-40,297.65

Finding the Fourth Proportional to 56,918.85, 85,378.28 and 40,297.65

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Solution

The fourth proportional to 56,918.85, 85,378.28 and 40,297.65 is: 60,446.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918.85 : 85,378.28 = 40,297.65 : x
  2. Step 2: Convert to fraction form
    56,918.85/85,378.28 = 40,297.65/x
  3. Step 3: Cross multiply
    56,918.85x = 85,378.28 × 40,297.65
  4. Step 4: Simplify right side
    56,918.85x = 3,440,543,843.55
  5. Step 5: Solve for x
    x = 3,440,543,843.55/56,918.85
  6. Step 6: Final answer
    x = 60,446.48

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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.