Home / 49,480.80-74,221.20-14,421.60

Finding the Fourth Proportional to 49,480.80, 74,221.20 and 14,421.60

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Solution

The fourth proportional to 49,480.80, 74,221.20 and 14,421.60 is: 21,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,480.80 : 74,221.20 = 14,421.60 : x
  2. Step 2: Convert to fraction form
    49,480.80/74,221.20 = 14,421.60/x
  3. Step 3: Cross multiply
    49,480.80x = 74,221.20 × 14,421.60
  4. Step 4: Simplify right side
    49,480.80x = 1,070,388,457.92
  5. Step 5: Solve for x
    x = 1,070,388,457.92/49,480.80
  6. Step 6: Final answer
    x = 21,632.40

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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.