Home / 90,666.24-125,117.64-50,379.60

Finding the Fourth Proportional to 90,666.24, 125,117.64 and 50,379.60

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Solution

The fourth proportional to 90,666.24, 125,117.64 and 50,379.60 is: 69,522.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,666.24 : 125,117.64 = 50,379.60 : x
  2. Step 2: Convert to fraction form
    90,666.24/125,117.64 = 50,379.60/x
  3. Step 3: Cross multiply
    90,666.24x = 125,117.64 × 50,379.60
  4. Step 4: Simplify right side
    90,666.24x = 6,303,376,656.14
  5. Step 5: Solve for x
    x = 6,303,376,656.14/90,666.24
  6. Step 6: Final answer
    x = 69,522.86

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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.