Home / 78,048.45-117,073.35-18,884.18

Finding the Fourth Proportional to 78,048.45, 117,073.35 and 18,884.18

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Solution

The fourth proportional to 78,048.45, 117,073.35 and 18,884.18 is: 28,326.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,048.45 : 117,073.35 = 18,884.18 : x
  2. Step 2: Convert to fraction form
    78,048.45/117,073.35 = 18,884.18/x
  3. Step 3: Cross multiply
    78,048.45x = 117,073.35 × 18,884.18
  4. Step 4: Simplify right side
    78,048.45x = 2,210,833,629.24
  5. Step 5: Solve for x
    x = 2,210,833,629.24/78,048.45
  6. Step 6: Final answer
    x = 28,326.43

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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.