Home / 90,555.24-124,968.40-50,811.24

Finding the Fourth Proportional to 90,555.24, 124,968.40 and 50,811.24

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Solution

The fourth proportional to 90,555.24, 124,968.40 and 50,811.24 is: 70,120.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,555.24 : 124,968.40 = 50,811.24 : x
  2. Step 2: Convert to fraction form
    90,555.24/124,968.40 = 50,811.24/x
  3. Step 3: Cross multiply
    90,555.24x = 124,968.40 × 50,811.24
  4. Step 4: Simplify right side
    90,555.24x = 6,349,799,364.82
  5. Step 5: Solve for x
    x = 6,349,799,364.82/90,555.24
  6. Step 6: Final answer
    x = 70,120.73

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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.