Home / 71,984.06-99,337.36-39,718.98

Finding the Fourth Proportional to 71,984.06, 99,337.36 and 39,718.98

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Solution

The fourth proportional to 71,984.06, 99,337.36 and 39,718.98 is: 54,811.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,984.06 : 99,337.36 = 39,718.98 : x
  2. Step 2: Convert to fraction form
    71,984.06/99,337.36 = 39,718.98/x
  3. Step 3: Cross multiply
    71,984.06x = 99,337.36 × 39,718.98
  4. Step 4: Simplify right side
    71,984.06x = 3,945,578,615.09
  5. Step 5: Solve for x
    x = 3,945,578,615.09/71,984.06
  6. Step 6: Final answer
    x = 54,811.84

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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.