Home / 78,039.14-117,089.87-46,464.08

Finding the Fourth Proportional to 78,039.14, 117,089.87 and 46,464.08

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Solution

The fourth proportional to 78,039.14, 117,089.87 and 46,464.08 is: 69,714.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,039.14 : 117,089.87 = 46,464.08 : x
  2. Step 2: Convert to fraction form
    78,039.14/117,089.87 = 46,464.08/x
  3. Step 3: Cross multiply
    78,039.14x = 117,089.87 × 46,464.08
  4. Step 4: Simplify right side
    78,039.14x = 5,440,472,269.10
  5. Step 5: Solve for x
    x = 5,440,472,269.10/78,039.14
  6. Step 6: Final answer
    x = 69,714.67

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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.