Home / 90,666.15-125,116.81-50,378.88

Finding the Fourth Proportional to 90,666.15, 125,116.81 and 50,378.88

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Solution

The fourth proportional to 90,666.15, 125,116.81 and 50,378.88 is: 69,521.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,666.15 : 125,116.81 = 50,378.88 : x
  2. Step 2: Convert to fraction form
    90,666.15/125,116.81 = 50,378.88/x
  3. Step 3: Cross multiply
    90,666.15x = 125,116.81 × 50,378.88
  4. Step 4: Simplify right side
    90,666.15x = 6,303,244,505.08
  5. Step 5: Solve for x
    x = 6,303,244,505.08/90,666.15
  6. Step 6: Final answer
    x = 69,521.48

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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.