Home / 64,769.93-97,158.38-20,400.16

Finding the Fourth Proportional to 64,769.93, 97,158.38 and 20,400.16

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Solution

The fourth proportional to 64,769.93, 97,158.38 and 20,400.16 is: 30,601.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,769.93 : 97,158.38 = 20,400.16 : x
  2. Step 2: Convert to fraction form
    64,769.93/97,158.38 = 20,400.16/x
  3. Step 3: Cross multiply
    64,769.93x = 97,158.38 × 20,400.16
  4. Step 4: Simplify right side
    64,769.93x = 1,982,045,909.55
  5. Step 5: Solve for x
    x = 1,982,045,909.55/64,769.93
  6. Step 6: Final answer
    x = 30,601.33

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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.