Home / 55,900.08-77,135.09-37,790.20

Finding the Fourth Proportional to 55,900.08, 77,135.09 and 37,790.20

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Solution

The fourth proportional to 55,900.08, 77,135.09 and 37,790.20 is: 52,145.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,900.08 : 77,135.09 = 37,790.20 : x
  2. Step 2: Convert to fraction form
    55,900.08/77,135.09 = 37,790.20/x
  3. Step 3: Cross multiply
    55,900.08x = 77,135.09 × 37,790.20
  4. Step 4: Simplify right side
    55,900.08x = 2,914,950,379.76
  5. Step 5: Solve for x
    x = 2,914,950,379.76/55,900.08
  6. Step 6: Final answer
    x = 52,145.73

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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.