Home / 90,839.94-125,356.59-50,555.13

Finding the Fourth Proportional to 90,839.94, 125,356.59 and 50,555.13

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Solution

The fourth proportional to 90,839.94, 125,356.59 and 50,555.13 is: 69,764.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,839.94 : 125,356.59 = 50,555.13 : x
  2. Step 2: Convert to fraction form
    90,839.94/125,356.59 = 50,555.13/x
  3. Step 3: Cross multiply
    90,839.94x = 125,356.59 × 50,555.13
  4. Step 4: Simplify right side
    90,839.94x = 6,337,418,703.81
  5. Step 5: Solve for x
    x = 6,337,418,703.81/90,839.94
  6. Step 6: Final answer
    x = 69,764.67

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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.