Home / 65,900.72-98,850.13-15,981.23

Finding the Fourth Proportional to 65,900.72, 98,850.13 and 15,981.23

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Solution

The fourth proportional to 65,900.72, 98,850.13 and 15,981.23 is: 23,971.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,900.72 : 98,850.13 = 15,981.23 : x
  2. Step 2: Convert to fraction form
    65,900.72/98,850.13 = 15,981.23/x
  3. Step 3: Cross multiply
    65,900.72x = 98,850.13 × 15,981.23
  4. Step 4: Simplify right side
    65,900.72x = 1,579,746,870.23
  5. Step 5: Solve for x
    x = 1,579,746,870.23/65,900.72
  6. Step 6: Final answer
    x = 23,971.62

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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.