Home / 45,078.32-62,259.12-30,713.22

Finding the Fourth Proportional to 45,078.32, 62,259.12 and 30,713.22

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Solution

The fourth proportional to 45,078.32, 62,259.12 and 30,713.22 is: 42,419.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,078.32 : 62,259.12 = 30,713.22 : x
  2. Step 2: Convert to fraction form
    45,078.32/62,259.12 = 30,713.22/x
  3. Step 3: Cross multiply
    45,078.32x = 62,259.12 × 30,713.22
  4. Step 4: Simplify right side
    45,078.32x = 1,912,178,049.57
  5. Step 5: Solve for x
    x = 1,912,178,049.57/45,078.32
  6. Step 6: Final answer
    x = 42,419.02

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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.