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Finding the Fourth Proportional to 55,200.40, 82,775.70 and 15,748.12

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Solution

The fourth proportional to 55,200.40, 82,775.70 and 15,748.12 is: 23,615.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,200.40 : 82,775.70 = 15,748.12 : x
  2. Step 2: Convert to fraction form
    55,200.40/82,775.70 = 15,748.12/x
  3. Step 3: Cross multiply
    55,200.40x = 82,775.70 × 15,748.12
  4. Step 4: Simplify right side
    55,200.40x = 1,303,561,656.68
  5. Step 5: Solve for x
    x = 1,303,561,656.68/55,200.40
  6. Step 6: Final answer
    x = 23,615.08

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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.