Home / 64,708.18-97,072.08-20,330.77

Finding the Fourth Proportional to 64,708.18, 97,072.08 and 20,330.77

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Solution

The fourth proportional to 64,708.18, 97,072.08 and 20,330.77 is: 30,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,708.18 : 97,072.08 = 20,330.77 : x
  2. Step 2: Convert to fraction form
    64,708.18/97,072.08 = 20,330.77/x
  3. Step 3: Cross multiply
    64,708.18x = 97,072.08 × 20,330.77
  4. Step 4: Simplify right side
    64,708.18x = 1,973,550,131.90
  5. Step 5: Solve for x
    x = 1,973,550,131.90/64,708.18
  6. Step 6: Final answer
    x = 30,499.24

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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.