Home / 53,138.70-73,339.47-40,370.94

Finding the Fourth Proportional to 53,138.70, 73,339.47 and 40,370.94

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Solution

The fourth proportional to 53,138.70, 73,339.47 and 40,370.94 is: 55,718.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,138.70 : 73,339.47 = 40,370.94 : x
  2. Step 2: Convert to fraction form
    53,138.70/73,339.47 = 40,370.94/x
  3. Step 3: Cross multiply
    53,138.70x = 73,339.47 × 40,370.94
  4. Step 4: Simplify right side
    53,138.70x = 2,960,783,343.00
  5. Step 5: Solve for x
    x = 2,960,783,343.00/53,138.70
  6. Step 6: Final answer
    x = 55,718.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.