Home / 64,848.52-97,277.91-20,478.70

Finding the Fourth Proportional to 64,848.52, 97,277.91 and 20,478.70

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Solution

The fourth proportional to 64,848.52, 97,277.91 and 20,478.70 is: 30,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,848.52 : 97,277.91 = 20,478.70 : x
  2. Step 2: Convert to fraction form
    64,848.52/97,277.91 = 20,478.70/x
  3. Step 3: Cross multiply
    64,848.52x = 97,277.91 × 20,478.70
  4. Step 4: Simplify right side
    64,848.52x = 1,992,125,135.52
  5. Step 5: Solve for x
    x = 1,992,125,135.52/64,848.52
  6. Step 6: Final answer
    x = 30,719.67

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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.