Home / 72,511.06-100,042.82-42,274.98

Finding the Fourth Proportional to 72,511.06, 100,042.82 and 42,274.98

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Solution

The fourth proportional to 72,511.06, 100,042.82 and 42,274.98 is: 58,326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,511.06 : 100,042.82 = 42,274.98 : x
  2. Step 2: Convert to fraction form
    72,511.06/100,042.82 = 42,274.98/x
  3. Step 3: Cross multiply
    72,511.06x = 100,042.82 × 42,274.98
  4. Step 4: Simplify right side
    72,511.06x = 4,229,308,214.64
  5. Step 5: Solve for x
    x = 4,229,308,214.64/72,511.06
  6. Step 6: Final answer
    x = 58,326.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.