Home / 52,480.13-78,720.54-19,186.49

Finding the Fourth Proportional to 52,480.13, 78,720.54 and 19,186.49

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Solution

The fourth proportional to 52,480.13, 78,720.54 and 19,186.49 is: 28,779.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,480.13 : 78,720.54 = 19,186.49 : x
  2. Step 2: Convert to fraction form
    52,480.13/78,720.54 = 19,186.49/x
  3. Step 3: Cross multiply
    52,480.13x = 78,720.54 × 19,186.49
  4. Step 4: Simplify right side
    52,480.13x = 1,510,370,853.50
  5. Step 5: Solve for x
    x = 1,510,370,853.50/52,480.13
  6. Step 6: Final answer
    x = 28,779.86

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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.