Home / 93,164.15-128,564.50-54,408.63

Finding the Fourth Proportional to 93,164.15, 128,564.50 and 54,408.63

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Solution

The fourth proportional to 93,164.15, 128,564.50 and 54,408.63 is: 75,082.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,164.15 : 128,564.50 = 54,408.63 : x
  2. Step 2: Convert to fraction form
    93,164.15/128,564.50 = 54,408.63/x
  3. Step 3: Cross multiply
    93,164.15x = 128,564.50 × 54,408.63
  4. Step 4: Simplify right side
    93,164.15x = 6,995,018,861.76
  5. Step 5: Solve for x
    x = 6,995,018,861.76/93,164.15
  6. Step 6: Final answer
    x = 75,082.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.