Home / 43,005.32-64,533.12-18,043.20

Finding the Fourth Proportional to 43,005.32, 64,533.12 and 18,043.20

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Solution

The fourth proportional to 43,005.32, 64,533.12 and 18,043.20 is: 27,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,005.32 : 64,533.12 = 18,043.20 : x
  2. Step 2: Convert to fraction form
    43,005.32/64,533.12 = 18,043.20/x
  3. Step 3: Cross multiply
    43,005.32x = 64,533.12 × 18,043.20
  4. Step 4: Simplify right side
    43,005.32x = 1,164,383,990.78
  5. Step 5: Solve for x
    x = 1,164,383,990.78/43,005.32
  6. Step 6: Final answer
    x = 27,075.35

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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.