Home / 85,541.67-118,072.49-49,747.77

Finding the Fourth Proportional to 85,541.67, 118,072.49 and 49,747.77

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Solution

The fourth proportional to 85,541.67, 118,072.49 and 49,747.77 is: 68,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,541.67 : 118,072.49 = 49,747.77 : x
  2. Step 2: Convert to fraction form
    85,541.67/118,072.49 = 49,747.77/x
  3. Step 3: Cross multiply
    85,541.67x = 118,072.49 × 49,747.77
  4. Step 4: Simplify right side
    85,541.67x = 5,873,842,827.11
  5. Step 5: Solve for x
    x = 5,873,842,827.11/85,541.67
  6. Step 6: Final answer
    x = 68,666.45

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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.