Home / 90,718.56-125,184.36-50,429.16

Finding the Fourth Proportional to 90,718.56, 125,184.36 and 50,429.16

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Solution

The fourth proportional to 90,718.56, 125,184.36 and 50,429.16 is: 69,588.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,718.56 : 125,184.36 = 50,429.16 : x
  2. Step 2: Convert to fraction form
    90,718.56/125,184.36 = 50,429.16/x
  3. Step 3: Cross multiply
    90,718.56x = 125,184.36 × 50,429.16
  4. Step 4: Simplify right side
    90,718.56x = 6,312,942,119.94
  5. Step 5: Solve for x
    x = 6,312,942,119.94/90,718.56
  6. Step 6: Final answer
    x = 69,588.21

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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.