Home / 55,113.12-82,671.24-13,560

Finding the Fourth Proportional to 55,113.12, 82,671.24 and 13,560

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Solution

The fourth proportional to 55,113.12, 82,671.24 and 13,560 is: 20,340.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,113.12 : 82,671.24 = 13,560 : x
  2. Step 2: Convert to fraction form
    55,113.12/82,671.24 = 13,560/x
  3. Step 3: Cross multiply
    55,113.12x = 82,671.24 × 13,560
  4. Step 4: Simplify right side
    55,113.12x = 1,121,022,014.40
  5. Step 5: Solve for x
    x = 1,121,022,014.40/55,113.12
  6. Step 6: Final answer
    x = 20,340.38

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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.