Home / 51,980.64-71,732.96-28,107.36

Finding the Fourth Proportional to 51,980.64, 71,732.96 and 28,107.36

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Solution

The fourth proportional to 51,980.64, 71,732.96 and 28,107.36 is: 38,787.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,980.64 : 71,732.96 = 28,107.36 : x
  2. Step 2: Convert to fraction form
    51,980.64/71,732.96 = 28,107.36/x
  3. Step 3: Cross multiply
    51,980.64x = 71,732.96 × 28,107.36
  4. Step 4: Simplify right side
    51,980.64x = 2,016,224,130.59
  5. Step 5: Solve for x
    x = 2,016,224,130.59/51,980.64
  6. Step 6: Final answer
    x = 38,787.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.