Home / 45,147.16-62,272.13-30,975.40

Finding the Fourth Proportional to 45,147.16, 62,272.13 and 30,975.40

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Solution

The fourth proportional to 45,147.16, 62,272.13 and 30,975.40 is: 42,724.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,147.16 : 62,272.13 = 30,975.40 : x
  2. Step 2: Convert to fraction form
    45,147.16/62,272.13 = 30,975.40/x
  3. Step 3: Cross multiply
    45,147.16x = 62,272.13 × 30,975.40
  4. Step 4: Simplify right side
    45,147.16x = 1,928,903,980.73
  5. Step 5: Solve for x
    x = 1,928,903,980.73/45,147.16
  6. Step 6: Final answer
    x = 42,724.81

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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.