Home / 78,411.08-117,623.12-25,110.84

Finding the Fourth Proportional to 78,411.08, 117,623.12 and 25,110.84

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Solution

The fourth proportional to 78,411.08, 117,623.12 and 25,110.84 is: 37,668.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,411.08 : 117,623.12 = 25,110.84 : x
  2. Step 2: Convert to fraction form
    78,411.08/117,623.12 = 25,110.84/x
  3. Step 3: Cross multiply
    78,411.08x = 117,623.12 × 25,110.84
  4. Step 4: Simplify right side
    78,411.08x = 2,953,615,346.62
  5. Step 5: Solve for x
    x = 2,953,615,346.62/78,411.08
  6. Step 6: Final answer
    x = 37,668.34

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1.5x scale

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.