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Finding the Fourth Proportional to 72,673.88, 100,267.42 and 42,437.39

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Solution

The fourth proportional to 72,673.88, 100,267.42 and 42,437.39 is: 58,550.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,673.88 : 100,267.42 = 42,437.39 : x
  2. Step 2: Convert to fraction form
    72,673.88/100,267.42 = 42,437.39/x
  3. Step 3: Cross multiply
    72,673.88x = 100,267.42 × 42,437.39
  4. Step 4: Simplify right side
    72,673.88x = 4,255,087,924.98
  5. Step 5: Solve for x
    x = 4,255,087,924.98/72,673.88
  6. Step 6: Final answer
    x = 58,550.44

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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.