Home / 73,012.05-100,778.18-42,803.91

Finding the Fourth Proportional to 73,012.05, 100,778.18 and 42,803.91

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Solution

The fourth proportional to 73,012.05, 100,778.18 and 42,803.91 is: 59,082.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,012.05 : 100,778.18 = 42,803.91 : x
  2. Step 2: Convert to fraction form
    73,012.05/100,778.18 = 42,803.91/x
  3. Step 3: Cross multiply
    73,012.05x = 100,778.18 × 42,803.91
  4. Step 4: Simplify right side
    73,012.05x = 4,313,699,932.66
  5. Step 5: Solve for x
    x = 4,313,699,932.66/73,012.05
  6. Step 6: Final answer
    x = 59,082.03

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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.