Home / 53,660.20-80,555.10-53,271.40

Finding the Fourth Proportional to 53,660.20, 80,555.10 and 53,271.40

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Solution

The fourth proportional to 53,660.20, 80,555.10 and 53,271.40 is: 79,971.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,660.20 : 80,555.10 = 53,271.40 : x
  2. Step 2: Convert to fraction form
    53,660.20/80,555.10 = 53,271.40/x
  3. Step 3: Cross multiply
    53,660.20x = 80,555.10 × 53,271.40
  4. Step 4: Simplify right side
    53,660.20x = 4,291,282,954.14
  5. Step 5: Solve for x
    x = 4,291,282,954.14/53,660.20
  6. Step 6: Final answer
    x = 79,971.43

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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.