Home / 90,543.67-124,944.55-50,255.08

Finding the Fourth Proportional to 90,543.67, 124,944.55 and 50,255.08

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Solution

The fourth proportional to 90,543.67, 124,944.55 and 50,255.08 is: 69,348.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,543.67 : 124,944.55 = 50,255.08 : x
  2. Step 2: Convert to fraction form
    90,543.67/124,944.55 = 50,255.08/x
  3. Step 3: Cross multiply
    90,543.67x = 124,944.55 × 50,255.08
  4. Step 4: Simplify right side
    90,543.67x = 6,279,097,917.81
  5. Step 5: Solve for x
    x = 6,279,097,917.81/90,543.67
  6. Step 6: Final answer
    x = 69,348.84

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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.