Home / 52,277.16-78,415.74-18,991.02

Finding the Fourth Proportional to 52,277.16, 78,415.74 and 18,991.02

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Solution

The fourth proportional to 52,277.16, 78,415.74 and 18,991.02 is: 28,486.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,277.16 : 78,415.74 = 18,991.02 : x
  2. Step 2: Convert to fraction form
    52,277.16/78,415.74 = 18,991.02/x
  3. Step 3: Cross multiply
    52,277.16x = 78,415.74 × 18,991.02
  4. Step 4: Simplify right side
    52,277.16x = 1,489,194,886.65
  5. Step 5: Solve for x
    x = 1,489,194,886.65/52,277.16
  6. Step 6: Final answer
    x = 28,486.53

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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.