Home / 78,529.41-117,795.37-19,365.10

Finding the Fourth Proportional to 78,529.41, 117,795.37 and 19,365.10

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Solution

The fourth proportional to 78,529.41, 117,795.37 and 19,365.10 is: 29,047.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,529.41 : 117,795.37 = 19,365.10 : x
  2. Step 2: Convert to fraction form
    78,529.41/117,795.37 = 19,365.10/x
  3. Step 3: Cross multiply
    78,529.41x = 117,795.37 × 19,365.10
  4. Step 4: Simplify right side
    78,529.41x = 2,281,119,022.76
  5. Step 5: Solve for x
    x = 2,281,119,022.76/78,529.41
  6. Step 6: Final answer
    x = 29,047.96

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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.