Home / 64,484.10-89,021.25-50,111.70

Finding the Fourth Proportional to 64,484.10, 89,021.25 and 50,111.70

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Solution

The fourth proportional to 64,484.10, 89,021.25 and 50,111.70 is: 69,179.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,484.10 : 89,021.25 = 50,111.70 : x
  2. Step 2: Convert to fraction form
    64,484.10/89,021.25 = 50,111.70/x
  3. Step 3: Cross multiply
    64,484.10x = 89,021.25 × 50,111.70
  4. Step 4: Simplify right side
    64,484.10x = 4,461,006,173.63
  5. Step 5: Solve for x
    x = 4,461,006,173.63/64,484.10
  6. Step 6: Final answer
    x = 69,179.94

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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.