Home / 65,247.07-97,861.50-20,877.70

Finding the Fourth Proportional to 65,247.07, 97,861.50 and 20,877.70

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Solution

The fourth proportional to 65,247.07, 97,861.50 and 20,877.70 is: 31,313.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,247.07 : 97,861.50 = 20,877.70 : x
  2. Step 2: Convert to fraction form
    65,247.07/97,861.50 = 20,877.70/x
  3. Step 3: Cross multiply
    65,247.07x = 97,861.50 × 20,877.70
  4. Step 4: Simplify right side
    65,247.07x = 2,043,123,038.55
  5. Step 5: Solve for x
    x = 2,043,123,038.55/65,247.07
  6. Step 6: Final answer
    x = 31,313.64

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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.