Home / 65,316.38-97,979.63-20,332.08

Finding the Fourth Proportional to 65,316.38, 97,979.63 and 20,332.08

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Solution

The fourth proportional to 65,316.38, 97,979.63 and 20,332.08 is: 30,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,316.38 : 97,979.63 = 20,332.08 : x
  2. Step 2: Convert to fraction form
    65,316.38/97,979.63 = 20,332.08/x
  3. Step 3: Cross multiply
    65,316.38x = 97,979.63 × 20,332.08
  4. Step 4: Simplify right side
    65,316.38x = 1,992,129,573.87
  5. Step 5: Solve for x
    x = 1,992,129,573.87/65,316.38
  6. Step 6: Final answer
    x = 30,499.70

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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.