Home / 65,715.10-98,561.88-18,333.40

Finding the Fourth Proportional to 65,715.10, 98,561.88 and 18,333.40

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Solution

The fourth proportional to 65,715.10, 98,561.88 and 18,333.40 is: 27,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,715.10 : 98,561.88 = 18,333.40 : x
  2. Step 2: Convert to fraction form
    65,715.10/98,561.88 = 18,333.40/x
  3. Step 3: Cross multiply
    65,715.10x = 98,561.88 × 18,333.40
  4. Step 4: Simplify right side
    65,715.10x = 1,806,974,370.79
  5. Step 5: Solve for x
    x = 1,806,974,370.79/65,715.10
  6. Step 6: Final answer
    x = 27,497.10

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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.