Home / 64,888.56-97,332.23-20,515.31

Finding the Fourth Proportional to 64,888.56, 97,332.23 and 20,515.31

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Solution

The fourth proportional to 64,888.56, 97,332.23 and 20,515.31 is: 30,772.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,888.56 : 97,332.23 = 20,515.31 : x
  2. Step 2: Convert to fraction form
    64,888.56/97,332.23 = 20,515.31/x
  3. Step 3: Cross multiply
    64,888.56x = 97,332.23 × 20,515.31
  4. Step 4: Simplify right side
    64,888.56x = 1,996,800,768.86
  5. Step 5: Solve for x
    x = 1,996,800,768.86/64,888.56
  6. Step 6: Final answer
    x = 30,772.77

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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.