Home / 85,579.42-118,059.83-55,374.49

Finding the Fourth Proportional to 85,579.42, 118,059.83 and 55,374.49

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Solution

The fourth proportional to 85,579.42, 118,059.83 and 55,374.49 is: 76,391.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,579.42 : 118,059.83 = 55,374.49 : x
  2. Step 2: Convert to fraction form
    85,579.42/118,059.83 = 55,374.49/x
  3. Step 3: Cross multiply
    85,579.42x = 118,059.83 × 55,374.49
  4. Step 4: Simplify right side
    85,579.42x = 6,537,502,875.74
  5. Step 5: Solve for x
    x = 6,537,502,875.74/85,579.42
  6. Step 6: Final answer
    x = 76,391.06

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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.