Home / 90,763.35-125,256.29-50,478.81

Finding the Fourth Proportional to 90,763.35, 125,256.29 and 50,478.81

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Solution

The fourth proportional to 90,763.35, 125,256.29 and 50,478.81 is: 69,662.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,763.35 : 125,256.29 = 50,478.81 : x
  2. Step 2: Convert to fraction form
    90,763.35/125,256.29 = 50,478.81/x
  3. Step 3: Cross multiply
    90,763.35x = 125,256.29 × 50,478.81
  4. Step 4: Simplify right side
    90,763.35x = 6,322,788,211.82
  5. Step 5: Solve for x
    x = 6,322,788,211.82/90,763.35
  6. Step 6: Final answer
    x = 69,662.35

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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.