Home / 90,917.98-125,457.86-50,630.20

Finding the Fourth Proportional to 90,917.98, 125,457.86 and 50,630.20

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Solution

The fourth proportional to 90,917.98, 125,457.86 and 50,630.20 is: 69,864.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,917.98 : 125,457.86 = 50,630.20 : x
  2. Step 2: Convert to fraction form
    90,917.98/125,457.86 = 50,630.20/x
  3. Step 3: Cross multiply
    90,917.98x = 125,457.86 × 50,630.20
  4. Step 4: Simplify right side
    90,917.98x = 6,351,956,543.37
  5. Step 5: Solve for x
    x = 6,351,956,543.37/90,917.98
  6. Step 6: Final answer
    x = 69,864.69

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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.