Home / 45,146.80-62,271.75-30,975.04

Finding the Fourth Proportional to 45,146.80, 62,271.75 and 30,975.04

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Solution

The fourth proportional to 45,146.80, 62,271.75 and 30,975.04 is: 42,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,146.80 : 62,271.75 = 30,975.04 : x
  2. Step 2: Convert to fraction form
    45,146.80/62,271.75 = 30,975.04/x
  3. Step 3: Cross multiply
    45,146.80x = 62,271.75 × 30,975.04
  4. Step 4: Simplify right side
    45,146.80x = 1,928,869,947.12
  5. Step 5: Solve for x
    x = 1,928,869,947.12/45,146.80
  6. Step 6: Final answer
    x = 42,724.40

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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.