Home / 90,190.94-124,513.56-54,390.02

Finding the Fourth Proportional to 90,190.94, 124,513.56 and 54,390.02

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Solution

The fourth proportional to 90,190.94, 124,513.56 and 54,390.02 is: 75,088.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,190.94 : 124,513.56 = 54,390.02 : x
  2. Step 2: Convert to fraction form
    90,190.94/124,513.56 = 54,390.02/x
  3. Step 3: Cross multiply
    90,190.94x = 124,513.56 × 54,390.02
  4. Step 4: Simplify right side
    90,190.94x = 6,772,295,018.67
  5. Step 5: Solve for x
    x = 6,772,295,018.67/90,190.94
  6. Step 6: Final answer
    x = 75,088.42

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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.