Home / 65,126.26-97,688.30-20,752.40

Finding the Fourth Proportional to 65,126.26, 97,688.30 and 20,752.40

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Solution

The fourth proportional to 65,126.26, 97,688.30 and 20,752.40 is: 31,128.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,126.26 : 97,688.30 = 20,752.40 : x
  2. Step 2: Convert to fraction form
    65,126.26/97,688.30 = 20,752.40/x
  3. Step 3: Cross multiply
    65,126.26x = 97,688.30 × 20,752.40
  4. Step 4: Simplify right side
    65,126.26x = 2,027,266,676.92
  5. Step 5: Solve for x
    x = 2,027,266,676.92/65,126.26
  6. Step 6: Final answer
    x = 31,128.25

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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.