Home / 89,007.60-133,511.40-54,015.60

Finding the Fourth Proportional to 89,007.60, 133,511.40 and 54,015.60

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Solution

The fourth proportional to 89,007.60, 133,511.40 and 54,015.60 is: 81,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,007.60 : 133,511.40 = 54,015.60 : x
  2. Step 2: Convert to fraction form
    89,007.60/133,511.40 = 54,015.60/x
  3. Step 3: Cross multiply
    89,007.60x = 133,511.40 × 54,015.60
  4. Step 4: Simplify right side
    89,007.60x = 7,211,698,377.84
  5. Step 5: Solve for x
    x = 7,211,698,377.84/89,007.60
  6. Step 6: Final answer
    x = 81,023.40

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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.