Home / 90,861.99-125,389.53-50,574.89

Finding the Fourth Proportional to 90,861.99, 125,389.53 and 50,574.89

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Solution

The fourth proportional to 90,861.99, 125,389.53 and 50,574.89 is: 69,793.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,861.99 : 125,389.53 = 50,574.89 : x
  2. Step 2: Convert to fraction form
    90,861.99/125,389.53 = 50,574.89/x
  3. Step 3: Cross multiply
    90,861.99x = 125,389.53 × 50,574.89
  4. Step 4: Simplify right side
    90,861.99x = 6,341,561,686.90
  5. Step 5: Solve for x
    x = 6,341,561,686.90/90,861.99
  6. Step 6: Final answer
    x = 69,793.34

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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.