Home / 78,035.44-117,018.60-56,055.28

Finding the Fourth Proportional to 78,035.44, 117,018.60 and 56,055.28

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Solution

The fourth proportional to 78,035.44, 117,018.60 and 56,055.28 is: 84,058.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,035.44 : 117,018.60 = 56,055.28 : x
  2. Step 2: Convert to fraction form
    78,035.44/117,018.60 = 56,055.28/x
  3. Step 3: Cross multiply
    78,035.44x = 117,018.60 × 56,055.28
  4. Step 4: Simplify right side
    78,035.44x = 6,559,510,388.21
  5. Step 5: Solve for x
    x = 6,559,510,388.21/78,035.44
  6. Step 6: Final answer
    x = 84,058.09

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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.