Home / 78,975.01-118,483.29-28,379.14

Finding the Fourth Proportional to 78,975.01, 118,483.29 and 28,379.14

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Solution

The fourth proportional to 78,975.01, 118,483.29 and 28,379.14 is: 42,576.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,975.01 : 118,483.29 = 28,379.14 : x
  2. Step 2: Convert to fraction form
    78,975.01/118,483.29 = 28,379.14/x
  3. Step 3: Cross multiply
    78,975.01x = 118,483.29 × 28,379.14
  4. Step 4: Simplify right side
    78,975.01x = 3,362,454,244.83
  5. Step 5: Solve for x
    x = 3,362,454,244.83/78,975.01
  6. Step 6: Final answer
    x = 42,576.18

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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.