Home / 42,987.44-64,451.75-21,886.65

Finding the Fourth Proportional to 42,987.44, 64,451.75 and 21,886.65

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Solution

The fourth proportional to 42,987.44, 64,451.75 and 21,886.65 is: 32,815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,987.44 : 64,451.75 = 21,886.65 : x
  2. Step 2: Convert to fraction form
    42,987.44/64,451.75 = 21,886.65/x
  3. Step 3: Cross multiply
    42,987.44x = 64,451.75 × 21,886.65
  4. Step 4: Simplify right side
    42,987.44x = 1,410,632,894.14
  5. Step 5: Solve for x
    x = 1,410,632,894.14/42,987.44
  6. Step 6: Final answer
    x = 32,815.00

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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.