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Finding the Fourth Proportional to 86,699.15, 130,053.23 and 27,539.45

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Solution

The fourth proportional to 86,699.15, 130,053.23 and 27,539.45 is: 41,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,699.15 : 130,053.23 = 27,539.45 : x
  2. Step 2: Convert to fraction form
    86,699.15/130,053.23 = 27,539.45/x
  3. Step 3: Cross multiply
    86,699.15x = 130,053.23 × 27,539.45
  4. Step 4: Simplify right side
    86,699.15x = 3,581,593,636.96
  5. Step 5: Solve for x
    x = 3,581,593,636.96/86,699.15
  6. Step 6: Final answer
    x = 41,310.60

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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.