Home / 64,309.11-88,749.72-38,815.04

Finding the Fourth Proportional to 64,309.11, 88,749.72 and 38,815.04

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Solution

The fourth proportional to 64,309.11, 88,749.72 and 38,815.04 is: 53,566.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,309.11 : 88,749.72 = 38,815.04 : x
  2. Step 2: Convert to fraction form
    64,309.11/88,749.72 = 38,815.04/x
  3. Step 3: Cross multiply
    64,309.11x = 88,749.72 × 38,815.04
  4. Step 4: Simplify right side
    64,309.11x = 3,444,823,488.04
  5. Step 5: Solve for x
    x = 3,444,823,488.04/64,309.11
  6. Step 6: Final answer
    x = 53,566.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.