Home / 53,807.20-80,775.60-53,418.40

Finding the Fourth Proportional to 53,807.20, 80,775.60 and 53,418.40

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Solution

The fourth proportional to 53,807.20, 80,775.60 and 53,418.40 is: 80,191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,807.20 : 80,775.60 = 53,418.40 : x
  2. Step 2: Convert to fraction form
    53,807.20/80,775.60 = 53,418.40/x
  3. Step 3: Cross multiply
    53,807.20x = 80,775.60 × 53,418.40
  4. Step 4: Simplify right side
    53,807.20x = 4,314,903,311.04
  5. Step 5: Solve for x
    x = 4,314,903,311.04/53,807.20
  6. Step 6: Final answer
    x = 80,191.93

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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.