Home / 90,890.44-125,428.51-50,603.16

Finding the Fourth Proportional to 90,890.44, 125,428.51 and 50,603.16

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Solution

The fourth proportional to 90,890.44, 125,428.51 and 50,603.16 is: 69,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,890.44 : 125,428.51 = 50,603.16 : x
  2. Step 2: Convert to fraction form
    90,890.44/125,428.51 = 50,603.16/x
  3. Step 3: Cross multiply
    90,890.44x = 125,428.51 × 50,603.16
  4. Step 4: Simplify right side
    90,890.44x = 6,347,078,960.09
  5. Step 5: Solve for x
    x = 6,347,078,960.09/90,890.44
  6. Step 6: Final answer
    x = 69,832.20

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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.