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Finding the Fourth Proportional to 85,783.35, 118,377.79 and 47,541.90

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Solution

The fourth proportional to 85,783.35, 118,377.79 and 47,541.90 is: 65,606.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,783.35 : 118,377.79 = 47,541.90 : x
  2. Step 2: Convert to fraction form
    85,783.35/118,377.79 = 47,541.90/x
  3. Step 3: Cross multiply
    85,783.35x = 118,377.79 × 47,541.90
  4. Step 4: Simplify right side
    85,783.35x = 5,627,905,054.40
  5. Step 5: Solve for x
    x = 5,627,905,054.40/85,783.35
  6. Step 6: Final answer
    x = 65,606.03

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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.