Home / 75,309.40-112,977.06-30,960.28

Finding the Fourth Proportional to 75,309.40, 112,977.06 and 30,960.28

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Solution

The fourth proportional to 75,309.40, 112,977.06 and 30,960.28 is: 46,445.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,309.40 : 112,977.06 = 30,960.28 : x
  2. Step 2: Convert to fraction form
    75,309.40/112,977.06 = 30,960.28/x
  3. Step 3: Cross multiply
    75,309.40x = 112,977.06 × 30,960.28
  4. Step 4: Simplify right side
    75,309.40x = 3,497,801,411.18
  5. Step 5: Solve for x
    x = 3,497,801,411.18/75,309.40
  6. Step 6: Final answer
    x = 46,445.75

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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.