Home / 88,990.81-133,458.69-25,815.58

Finding the Fourth Proportional to 88,990.81, 133,458.69 and 25,815.58

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Solution

The fourth proportional to 88,990.81, 133,458.69 and 25,815.58 is: 38,715.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,990.81 : 133,458.69 = 25,815.58 : x
  2. Step 2: Convert to fraction form
    88,990.81/133,458.69 = 25,815.58/x
  3. Step 3: Cross multiply
    88,990.81x = 133,458.69 × 25,815.58
  4. Step 4: Simplify right side
    88,990.81x = 3,445,313,488.39
  5. Step 5: Solve for x
    x = 3,445,313,488.39/88,990.81
  6. Step 6: Final answer
    x = 38,715.39

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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.