Home / 64,749.08-97,123.48-20,379.71

Finding the Fourth Proportional to 64,749.08, 97,123.48 and 20,379.71

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Solution

The fourth proportional to 64,749.08, 97,123.48 and 20,379.71 is: 30,569.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,749.08 : 97,123.48 = 20,379.71 : x
  2. Step 2: Convert to fraction form
    64,749.08/97,123.48 = 20,379.71/x
  3. Step 3: Cross multiply
    64,749.08x = 97,123.48 × 20,379.71
  4. Step 4: Simplify right side
    64,749.08x = 1,979,348,548.45
  5. Step 5: Solve for x
    x = 1,979,348,548.45/64,749.08
  6. Step 6: Final answer
    x = 30,569.52

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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.