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Finding the Fourth Proportional to 86,859.58, 119,702.40 and 69,612.34

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Solution

The fourth proportional to 86,859.58, 119,702.40 and 69,612.34 is: 95,933.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,859.58 : 119,702.40 = 69,612.34 : x
  2. Step 2: Convert to fraction form
    86,859.58/119,702.40 = 69,612.34/x
  3. Step 3: Cross multiply
    86,859.58x = 119,702.40 × 69,612.34
  4. Step 4: Simplify right side
    86,859.58x = 8,332,764,167.62
  5. Step 5: Solve for x
    x = 8,332,764,167.62/86,859.58
  6. Step 6: Final answer
    x = 95,933.74

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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.