Home / 89,981.51-134,958.39-30,011.04

Finding the Fourth Proportional to 89,981.51, 134,958.39 and 30,011.04

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Solution

The fourth proportional to 89,981.51, 134,958.39 and 30,011.04 is: 45,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.51 : 134,958.39 = 30,011.04 : x
  2. Step 2: Convert to fraction form
    89,981.51/134,958.39 = 30,011.04/x
  3. Step 3: Cross multiply
    89,981.51x = 134,958.39 × 30,011.04
  4. Step 4: Simplify right side
    89,981.51x = 4,050,241,640.63
  5. Step 5: Solve for x
    x = 4,050,241,640.63/89,981.51
  6. Step 6: Final answer
    x = 45,011.93

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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.