Home / 78,410.08-117,621.62-25,109.84

Finding the Fourth Proportional to 78,410.08, 117,621.62 and 25,109.84

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Solution

The fourth proportional to 78,410.08, 117,621.62 and 25,109.84 is: 37,666.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,410.08 : 117,621.62 = 25,109.84 : x
  2. Step 2: Convert to fraction form
    78,410.08/117,621.62 = 25,109.84/x
  3. Step 3: Cross multiply
    78,410.08x = 117,621.62 × 25,109.84
  4. Step 4: Simplify right side
    78,410.08x = 2,953,460,058.74
  5. Step 5: Solve for x
    x = 2,953,460,058.74/78,410.08
  6. Step 6: Final answer
    x = 37,666.84

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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.