Home / 89,210.47-133,815.93-30,087.67

Finding the Fourth Proportional to 89,210.47, 133,815.93 and 30,087.67

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Solution

The fourth proportional to 89,210.47, 133,815.93 and 30,087.67 is: 45,131.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,210.47 : 133,815.93 = 30,087.67 : x
  2. Step 2: Convert to fraction form
    89,210.47/133,815.93 = 30,087.67/x
  3. Step 3: Cross multiply
    89,210.47x = 133,815.93 × 30,087.67
  4. Step 4: Simplify right side
    89,210.47x = 4,026,208,873.50
  5. Step 5: Solve for x
    x = 4,026,208,873.50/89,210.47
  6. Step 6: Final answer
    x = 45,131.58

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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.