Home / 51,136.40-76,632.60-40,624.40

Finding the Fourth Proportional to 51,136.40, 76,632.60 and 40,624.40

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Solution

The fourth proportional to 51,136.40, 76,632.60 and 40,624.40 is: 60,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,136.40 : 76,632.60 = 40,624.40 : x
  2. Step 2: Convert to fraction form
    51,136.40/76,632.60 = 40,624.40/x
  3. Step 3: Cross multiply
    51,136.40x = 76,632.60 × 40,624.40
  4. Step 4: Simplify right side
    51,136.40x = 3,113,153,395.44
  5. Step 5: Solve for x
    x = 3,113,153,395.44/51,136.40
  6. Step 6: Final answer
    x = 60,879.40

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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.