Home / 72,118.35-99,524.16-39,852.84

Finding the Fourth Proportional to 72,118.35, 99,524.16 and 39,852.84

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Solution

The fourth proportional to 72,118.35, 99,524.16 and 39,852.84 is: 54,997.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,118.35 : 99,524.16 = 39,852.84 : x
  2. Step 2: Convert to fraction form
    72,118.35/99,524.16 = 39,852.84/x
  3. Step 3: Cross multiply
    72,118.35x = 99,524.16 × 39,852.84
  4. Step 4: Simplify right side
    72,118.35x = 3,966,320,424.61
  5. Step 5: Solve for x
    x = 3,966,320,424.61/72,118.35
  6. Step 6: Final answer
    x = 54,997.38

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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.