Home / 289,376.04-434,059.50-79,013.32

Finding the Fourth Proportional to 289,376.04, 434,059.50 and 79,013.32

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Solution

The fourth proportional to 289,376.04, 434,059.50 and 79,013.32 is: 118,518.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,376.04 : 434,059.50 = 79,013.32 : x
  2. Step 2: Convert to fraction form
    289,376.04/434,059.50 = 79,013.32/x
  3. Step 3: Cross multiply
    289,376.04x = 434,059.50 × 79,013.32
  4. Step 4: Simplify right side
    289,376.04x = 34,296,482,172.54
  5. Step 5: Solve for x
    x = 34,296,482,172.54/289,376.04
  6. Step 6: Final answer
    x = 118,518.73

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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.