Home / 43,259.04-64,872.72-21,065.76

Finding the Fourth Proportional to 43,259.04, 64,872.72 and 21,065.76

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Solution

The fourth proportional to 43,259.04, 64,872.72 and 21,065.76 is: 31,590.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,259.04 : 64,872.72 = 21,065.76 : x
  2. Step 2: Convert to fraction form
    43,259.04/64,872.72 = 21,065.76/x
  3. Step 3: Cross multiply
    43,259.04x = 64,872.72 × 21,065.76
  4. Step 4: Simplify right side
    43,259.04x = 1,366,593,150.07
  5. Step 5: Solve for x
    x = 1,366,593,150.07/43,259.04
  6. Step 6: Final answer
    x = 31,590.93

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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.