Home / 45,478.80-62,727.21-30,364.20

Finding the Fourth Proportional to 45,478.80, 62,727.21 and 30,364.20

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Solution

The fourth proportional to 45,478.80, 62,727.21 and 30,364.20 is: 41,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,478.80 : 62,727.21 = 30,364.20 : x
  2. Step 2: Convert to fraction form
    45,478.80/62,727.21 = 30,364.20/x
  3. Step 3: Cross multiply
    45,478.80x = 62,727.21 × 30,364.20
  4. Step 4: Simplify right side
    45,478.80x = 1,904,661,549.88
  5. Step 5: Solve for x
    x = 1,904,661,549.88/45,478.80
  6. Step 6: Final answer
    x = 41,880.21

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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.