Home / 45,145.48-62,311.14-30,038.78

Finding the Fourth Proportional to 45,145.48, 62,311.14 and 30,038.78

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Solution

The fourth proportional to 45,145.48, 62,311.14 and 30,038.78 is: 41,460.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,145.48 : 62,311.14 = 30,038.78 : x
  2. Step 2: Convert to fraction form
    45,145.48/62,311.14 = 30,038.78/x
  3. Step 3: Cross multiply
    45,145.48x = 62,311.14 × 30,038.78
  4. Step 4: Simplify right side
    45,145.48x = 1,871,750,626.01
  5. Step 5: Solve for x
    x = 1,871,750,626.01/45,145.48
  6. Step 6: Final answer
    x = 41,460.42

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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.