Home / 92,760.12-128,008.08-50,318.82

Finding the Fourth Proportional to 92,760.12, 128,008.08 and 50,318.82

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Solution

The fourth proportional to 92,760.12, 128,008.08 and 50,318.82 is: 69,439.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,760.12 : 128,008.08 = 50,318.82 : x
  2. Step 2: Convert to fraction form
    92,760.12/128,008.08 = 50,318.82/x
  3. Step 3: Cross multiply
    92,760.12x = 128,008.08 × 50,318.82
  4. Step 4: Simplify right side
    92,760.12x = 6,441,215,536.07
  5. Step 5: Solve for x
    x = 6,441,215,536.07/92,760.12
  6. Step 6: Final answer
    x = 69,439.49

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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.