Home / 65,079.12-97,646.66-20,709.48

Finding the Fourth Proportional to 65,079.12, 97,646.66 and 20,709.48

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Solution

The fourth proportional to 65,079.12, 97,646.66 and 20,709.48 is: 31,073.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,079.12 : 97,646.66 = 20,709.48 : x
  2. Step 2: Convert to fraction form
    65,079.12/97,646.66 = 20,709.48/x
  3. Step 3: Cross multiply
    65,079.12x = 97,646.66 × 20,709.48
  4. Step 4: Simplify right side
    65,079.12x = 2,022,211,552.34
  5. Step 5: Solve for x
    x = 2,022,211,552.34/65,079.12
  6. Step 6: Final answer
    x = 31,073.12

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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.