Home / 46,745.28-64,489.92-28,809.12

Finding the Fourth Proportional to 46,745.28, 64,489.92 and 28,809.12

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Solution

The fourth proportional to 46,745.28, 64,489.92 and 28,809.12 is: 39,745.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,745.28 : 64,489.92 = 28,809.12 : x
  2. Step 2: Convert to fraction form
    46,745.28/64,489.92 = 28,809.12/x
  3. Step 3: Cross multiply
    46,745.28x = 64,489.92 × 28,809.12
  4. Step 4: Simplify right side
    46,745.28x = 1,857,897,844.07
  5. Step 5: Solve for x
    x = 1,857,897,844.07/46,745.28
  6. Step 6: Final answer
    x = 39,745.14

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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.