Home / 85,669.20-128,547.72-41,333.76

Finding the Fourth Proportional to 85,669.20, 128,547.72 and 41,333.76

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Solution

The fourth proportional to 85,669.20, 128,547.72 and 41,333.76 is: 62,021.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,669.20 : 128,547.72 = 41,333.76 : x
  2. Step 2: Convert to fraction form
    85,669.20/128,547.72 = 41,333.76/x
  3. Step 3: Cross multiply
    85,669.20x = 128,547.72 × 41,333.76
  4. Step 4: Simplify right side
    85,669.20x = 5,313,360,607.03
  5. Step 5: Solve for x
    x = 5,313,360,607.03/85,669.20
  6. Step 6: Final answer
    x = 62,021.83

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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.