Home / 45,331.65-67,928.18-30,485.61

Finding the Fourth Proportional to 45,331.65, 67,928.18 and 30,485.61

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Solution

The fourth proportional to 45,331.65, 67,928.18 and 30,485.61 is: 45,681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,331.65 : 67,928.18 = 30,485.61 : x
  2. Step 2: Convert to fraction form
    45,331.65/67,928.18 = 30,485.61/x
  3. Step 3: Cross multiply
    45,331.65x = 67,928.18 × 30,485.61
  4. Step 4: Simplify right side
    45,331.65x = 2,070,831,851.06
  5. Step 5: Solve for x
    x = 2,070,831,851.06/45,331.65
  6. Step 6: Final answer
    x = 45,681.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.