Home / 92,761.12-128,009.46-50,319.82

Finding the Fourth Proportional to 92,761.12, 128,009.46 and 50,319.82

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Solution

The fourth proportional to 92,761.12, 128,009.46 and 50,319.82 is: 69,440.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,761.12 : 128,009.46 = 50,319.82 : x
  2. Step 2: Convert to fraction form
    92,761.12/128,009.46 = 50,319.82/x
  3. Step 3: Cross multiply
    92,761.12x = 128,009.46 × 50,319.82
  4. Step 4: Simplify right side
    92,761.12x = 6,441,412,985.50
  5. Step 5: Solve for x
    x = 6,441,412,985.50/92,761.12
  6. Step 6: Final answer
    x = 69,440.87

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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.