Home / 65,125.13-97,686.62-20,751.28

Finding the Fourth Proportional to 65,125.13, 97,686.62 and 20,751.28

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Solution

The fourth proportional to 65,125.13, 97,686.62 and 20,751.28 is: 31,126.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,125.13 : 97,686.62 = 20,751.28 : x
  2. Step 2: Convert to fraction form
    65,125.13/97,686.62 = 20,751.28/x
  3. Step 3: Cross multiply
    65,125.13x = 97,686.62 × 20,751.28
  4. Step 4: Simplify right side
    65,125.13x = 2,027,122,055.90
  5. Step 5: Solve for x
    x = 2,027,122,055.90/65,125.13
  6. Step 6: Final answer
    x = 31,126.57

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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.