Home / 78,192.24-117,093.88-54,708.72

Finding the Fourth Proportional to 78,192.24, 117,093.88 and 54,708.72

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Solution

The fourth proportional to 78,192.24, 117,093.88 and 54,708.72 is: 81,927.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,192.24 : 117,093.88 = 54,708.72 : x
  2. Step 2: Convert to fraction form
    78,192.24/117,093.88 = 54,708.72/x
  3. Step 3: Cross multiply
    78,192.24x = 117,093.88 × 54,708.72
  4. Step 4: Simplify right side
    78,192.24x = 6,406,056,294.63
  5. Step 5: Solve for x
    x = 6,406,056,294.63/78,192.24
  6. Step 6: Final answer
    x = 81,927.01

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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.