Home / 45,145.49-62,311.14-30,038.79

Finding the Fourth Proportional to 45,145.49, 62,311.14 and 30,038.79

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Solution

The fourth proportional to 45,145.49, 62,311.14 and 30,038.79 is: 41,460.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,145.49 : 62,311.14 = 30,038.79 : x
  2. Step 2: Convert to fraction form
    45,145.49/62,311.14 = 30,038.79/x
  3. Step 3: Cross multiply
    45,145.49x = 62,311.14 × 30,038.79
  4. Step 4: Simplify right side
    45,145.49x = 1,871,751,249.12
  5. Step 5: Solve for x
    x = 1,871,751,249.12/45,145.49
  6. Step 6: Final answer
    x = 41,460.43

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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.