Home / 92,913.72-128,221.16-50,471.36

Finding the Fourth Proportional to 92,913.72, 128,221.16 and 50,471.36

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Solution

The fourth proportional to 92,913.72, 128,221.16 and 50,471.36 is: 69,650.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,913.72 : 128,221.16 = 50,471.36 : x
  2. Step 2: Convert to fraction form
    92,913.72/128,221.16 = 50,471.36/x
  3. Step 3: Cross multiply
    92,913.72x = 128,221.16 × 50,471.36
  4. Step 4: Simplify right side
    92,913.72x = 6,471,496,325.98
  5. Step 5: Solve for x
    x = 6,471,496,325.98/92,913.72
  6. Step 6: Final answer
    x = 69,650.60

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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.