Home / 65,899.84-98,849.40-15,979.90

Finding the Fourth Proportional to 65,899.84, 98,849.40 and 15,979.90

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Solution

The fourth proportional to 65,899.84, 98,849.40 and 15,979.90 is: 23,969.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,899.84 : 98,849.40 = 15,979.90 : x
  2. Step 2: Convert to fraction form
    65,899.84/98,849.40 = 15,979.90/x
  3. Step 3: Cross multiply
    65,899.84x = 98,849.40 × 15,979.90
  4. Step 4: Simplify right side
    65,899.84x = 1,579,603,527.06
  5. Step 5: Solve for x
    x = 1,579,603,527.06/65,899.84
  6. Step 6: Final answer
    x = 23,969.76

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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.