Home / 64,885.09-97,319.22-20,516.32

Finding the Fourth Proportional to 64,885.09, 97,319.22 and 20,516.32

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Solution

The fourth proportional to 64,885.09, 97,319.22 and 20,516.32 is: 30,771.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,885.09 : 97,319.22 = 20,516.32 : x
  2. Step 2: Convert to fraction form
    64,885.09/97,319.22 = 20,516.32/x
  3. Step 3: Cross multiply
    64,885.09x = 97,319.22 × 20,516.32
  4. Step 4: Simplify right side
    64,885.09x = 1,996,632,259.67
  5. Step 5: Solve for x
    x = 1,996,632,259.67/64,885.09
  6. Step 6: Final answer
    x = 30,771.82

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1.5x scale

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.