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Finding the Fourth Proportional to 85,699.84, 118,266.24 and 47,460.64

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Solution

The fourth proportional to 85,699.84, 118,266.24 and 47,460.64 is: 65,495.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,699.84 : 118,266.24 = 47,460.64 : x
  2. Step 2: Convert to fraction form
    85,699.84/118,266.24 = 47,460.64/x
  3. Step 3: Cross multiply
    85,699.84x = 118,266.24 × 47,460.64
  4. Step 4: Simplify right side
    85,699.84x = 5,612,991,440.79
  5. Step 5: Solve for x
    x = 5,612,991,440.79/85,699.84
  6. Step 6: Final answer
    x = 65,495.94

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1.5x scale

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.