Home / 64,709.18-97,073.58-20,331.78

Finding the Fourth Proportional to 64,709.18, 97,073.58 and 20,331.78

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Solution

The fourth proportional to 64,709.18, 97,073.58 and 20,331.78 is: 30,500.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,709.18 : 97,073.58 = 20,331.78 : x
  2. Step 2: Convert to fraction form
    64,709.18/97,073.58 = 20,331.78/x
  3. Step 3: Cross multiply
    64,709.18x = 97,073.58 × 20,331.78
  4. Step 4: Simplify right side
    64,709.18x = 1,973,678,672.37
  5. Step 5: Solve for x
    x = 1,973,678,672.37/64,709.18
  6. Step 6: Final answer
    x = 30,500.75

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1.5x scale

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.