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Finding the Fourth Proportional to 86,285.98, 129,254.01 and 44,645.50

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Solution

The fourth proportional to 86,285.98, 129,254.01 and 44,645.50 is: 66,877.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,285.98 : 129,254.01 = 44,645.50 : x
  2. Step 2: Convert to fraction form
    86,285.98/129,254.01 = 44,645.50/x
  3. Step 3: Cross multiply
    86,285.98x = 129,254.01 × 44,645.50
  4. Step 4: Simplify right side
    86,285.98x = 5,770,609,903.46
  5. Step 5: Solve for x
    x = 5,770,609,903.46/86,285.98
  6. Step 6: Final answer
    x = 66,877.72

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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.