Home / 55,339.96-82,981.11-19,787.57

Finding the Fourth Proportional to 55,339.96, 82,981.11 and 19,787.57

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Solution

The fourth proportional to 55,339.96, 82,981.11 and 19,787.57 is: 29,671.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,339.96 : 82,981.11 = 19,787.57 : x
  2. Step 2: Convert to fraction form
    55,339.96/82,981.11 = 19,787.57/x
  3. Step 3: Cross multiply
    55,339.96x = 82,981.11 × 19,787.57
  4. Step 4: Simplify right side
    55,339.96x = 1,641,994,804.46
  5. Step 5: Solve for x
    x = 1,641,994,804.46/55,339.96
  6. Step 6: Final answer
    x = 29,671.05

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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.