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Finding the Fourth Proportional to 85,064.52, 117,192.51 and 61,149.84

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Solution

The fourth proportional to 85,064.52, 117,192.51 and 61,149.84 is: 84,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,064.52 : 117,192.51 = 61,149.84 : x
  2. Step 2: Convert to fraction form
    85,064.52/117,192.51 = 61,149.84/x
  3. Step 3: Cross multiply
    85,064.52x = 117,192.51 × 61,149.84
  4. Step 4: Simplify right side
    85,064.52x = 7,166,303,235.70
  5. Step 5: Solve for x
    x = 7,166,303,235.70/85,064.52
  6. Step 6: Final answer
    x = 84,245.50

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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.