Home / 65,121.16-97,676.34-20,746.12

Finding the Fourth Proportional to 65,121.16, 97,676.34 and 20,746.12

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Solution

The fourth proportional to 65,121.16, 97,676.34 and 20,746.12 is: 31,117.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,121.16 : 97,676.34 = 20,746.12 : x
  2. Step 2: Convert to fraction form
    65,121.16/97,676.34 = 20,746.12/x
  3. Step 3: Cross multiply
    65,121.16x = 97,676.34 × 20,746.12
  4. Step 4: Simplify right side
    65,121.16x = 2,026,405,070.80
  5. Step 5: Solve for x
    x = 2,026,405,070.80/65,121.16
  6. Step 6: Final answer
    x = 31,117.46

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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.