Home / 73,021.05-100,790.60-42,812.91

Finding the Fourth Proportional to 73,021.05, 100,790.60 and 42,812.91

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Solution

The fourth proportional to 73,021.05, 100,790.60 and 42,812.91 is: 59,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,021.05 : 100,790.60 = 42,812.91 : x
  2. Step 2: Convert to fraction form
    73,021.05/100,790.60 = 42,812.91/x
  3. Step 3: Cross multiply
    73,021.05x = 100,790.60 × 42,812.91
  4. Step 4: Simplify right side
    73,021.05x = 4,315,138,672.58
  5. Step 5: Solve for x
    x = 4,315,138,672.58/73,021.05
  6. Step 6: Final answer
    x = 59,094.45

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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.