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Finding the Fourth Proportional to 86,601.80, 129,875.70 and 34,027.40

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Solution

The fourth proportional to 86,601.80, 129,875.70 and 34,027.40 is: 51,030.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,601.80 : 129,875.70 = 34,027.40 : x
  2. Step 2: Convert to fraction form
    86,601.80/129,875.70 = 34,027.40/x
  3. Step 3: Cross multiply
    86,601.80x = 129,875.70 × 34,027.40
  4. Step 4: Simplify right side
    86,601.80x = 4,419,332,394.18
  5. Step 5: Solve for x
    x = 4,419,332,394.18/86,601.80
  6. Step 6: Final answer
    x = 51,030.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.