Home / 289,617.60-434,466.72-89,953.20

Finding the Fourth Proportional to 289,617.60, 434,466.72 and 89,953.20

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Solution

The fourth proportional to 289,617.60, 434,466.72 and 89,953.20 is: 134,942.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,617.60 : 434,466.72 = 89,953.20 : x
  2. Step 2: Convert to fraction form
    289,617.60/434,466.72 = 89,953.20/x
  3. Step 3: Cross multiply
    289,617.60x = 434,466.72 × 89,953.20
  4. Step 4: Simplify right side
    289,617.60x = 39,081,671,757.50
  5. Step 5: Solve for x
    x = 39,081,671,757.50/289,617.60
  6. Step 6: Final answer
    x = 134,942.32

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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.