Home / 40,111.74-60,172.76-18,749.54

Finding the Fourth Proportional to 40,111.74, 60,172.76 and 18,749.54

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Solution

The fourth proportional to 40,111.74, 60,172.76 and 18,749.54 is: 28,126.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,111.74 : 60,172.76 = 18,749.54 : x
  2. Step 2: Convert to fraction form
    40,111.74/60,172.76 = 18,749.54/x
  3. Step 3: Cross multiply
    40,111.74x = 60,172.76 × 18,749.54
  4. Step 4: Simplify right side
    40,111.74x = 1,128,211,570.53
  5. Step 5: Solve for x
    x = 1,128,211,570.53/40,111.74
  6. Step 6: Final answer
    x = 28,126.72

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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.