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Finding the Fourth Proportional to 86,549.40, 129,810.60 and 27,399.60

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Solution

The fourth proportional to 86,549.40, 129,810.60 and 27,399.60 is: 41,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,549.40 : 129,810.60 = 27,399.60 : x
  2. Step 2: Convert to fraction form
    86,549.40/129,810.60 = 27,399.60/x
  3. Step 3: Cross multiply
    86,549.40x = 129,810.60 × 27,399.60
  4. Step 4: Simplify right side
    86,549.40x = 3,556,758,515.76
  5. Step 5: Solve for x
    x = 3,556,758,515.76/86,549.40
  6. Step 6: Final answer
    x = 41,095.13

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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.