Home / 53,607.20-80,281.20-51,274.40

Finding the Fourth Proportional to 53,607.20, 80,281.20 and 51,274.40

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Solution

The fourth proportional to 53,607.20, 80,281.20 and 51,274.40 is: 76,787.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,607.20 : 80,281.20 = 51,274.40 : x
  2. Step 2: Convert to fraction form
    53,607.20/80,281.20 = 51,274.40/x
  3. Step 3: Cross multiply
    53,607.20x = 80,281.20 × 51,274.40
  4. Step 4: Simplify right side
    53,607.20x = 4,116,370,361.28
  5. Step 5: Solve for x
    x = 4,116,370,361.28/53,607.20
  6. Step 6: Final answer
    x = 76,787.64

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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.