Home / 51,467.20-77,200.80-21,877.60

Finding the Fourth Proportional to 51,467.20, 77,200.80 and 21,877.60

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Solution

The fourth proportional to 51,467.20, 77,200.80 and 21,877.60 is: 32,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,467.20 : 77,200.80 = 21,877.60 : x
  2. Step 2: Convert to fraction form
    51,467.20/77,200.80 = 21,877.60/x
  3. Step 3: Cross multiply
    51,467.20x = 77,200.80 × 21,877.60
  4. Step 4: Simplify right side
    51,467.20x = 1,688,968,222.08
  5. Step 5: Solve for x
    x = 1,688,968,222.08/51,467.20
  6. Step 6: Final answer
    x = 32,816.40

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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.