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Finding the Fourth Proportional to 36,045.51, 49,742.28 and 20,130.18

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Solution

The fourth proportional to 36,045.51, 49,742.28 and 20,130.18 is: 27,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,045.51 : 49,742.28 = 20,130.18 : x
  2. Step 2: Convert to fraction form
    36,045.51/49,742.28 = 20,130.18/x
  3. Step 3: Cross multiply
    36,045.51x = 49,742.28 × 20,130.18
  4. Step 4: Simplify right side
    36,045.51x = 1,001,321,050.01
  5. Step 5: Solve for x
    x = 1,001,321,050.01/36,045.51
  6. Step 6: Final answer
    x = 27,779.36

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