Home / 86,641.13-129,586.46-51,017.54

Finding the Fourth Proportional to 86,641.13, 129,586.46 and 51,017.54

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Solution

The fourth proportional to 86,641.13, 129,586.46 and 51,017.54 is: 76,305.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,641.13 : 129,586.46 = 51,017.54 : x
  2. Step 2: Convert to fraction form
    86,641.13/129,586.46 = 51,017.54/x
  3. Step 3: Cross multiply
    86,641.13x = 129,586.46 × 51,017.54
  4. Step 4: Simplify right side
    86,641.13x = 6,611,181,503.49
  5. Step 5: Solve for x
    x = 6,611,181,503.49/86,641.13
  6. Step 6: Final answer
    x = 76,305.35

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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.