Home / 92,829.80-128,008.20-55,096.76

Finding the Fourth Proportional to 92,829.80, 128,008.20 and 55,096.76

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Solution

The fourth proportional to 92,829.80, 128,008.20 and 55,096.76 is: 75,976.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,829.80 : 128,008.20 = 55,096.76 : x
  2. Step 2: Convert to fraction form
    92,829.80/128,008.20 = 55,096.76/x
  3. Step 3: Cross multiply
    92,829.80x = 128,008.20 × 55,096.76
  4. Step 4: Simplify right side
    92,829.80x = 7,052,837,073.43
  5. Step 5: Solve for x
    x = 7,052,837,073.43/92,829.80
  6. Step 6: Final answer
    x = 75,976.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.