Home / 92,835.72-128,112.41-50,394.20

Finding the Fourth Proportional to 92,835.72, 128,112.41 and 50,394.20

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Solution

The fourth proportional to 92,835.72, 128,112.41 and 50,394.20 is: 69,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,835.72 : 128,112.41 = 50,394.20 : x
  2. Step 2: Convert to fraction form
    92,835.72/128,112.41 = 50,394.20/x
  3. Step 3: Cross multiply
    92,835.72x = 128,112.41 × 50,394.20
  4. Step 4: Simplify right side
    92,835.72x = 6,456,121,897.45
  5. Step 5: Solve for x
    x = 6,456,121,897.45/92,835.72
  6. Step 6: Final answer
    x = 69,543.51

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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.