Home / 289,535.84-434,361.18-89,847.71

Finding the Fourth Proportional to 289,535.84, 434,361.18 and 89,847.71

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Solution

The fourth proportional to 289,535.84, 434,361.18 and 89,847.71 is: 134,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,535.84 : 434,361.18 = 89,847.71 : x
  2. Step 2: Convert to fraction form
    289,535.84/434,361.18 = 89,847.71/x
  3. Step 3: Cross multiply
    289,535.84x = 434,361.18 × 89,847.71
  4. Step 4: Simplify right side
    289,535.84x = 39,026,355,908.23
  5. Step 5: Solve for x
    x = 39,026,355,908.23/289,535.84
  6. Step 6: Final answer
    x = 134,789.38

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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.