Home / 55,570.32-76,650.12-39,663.72

Finding the Fourth Proportional to 55,570.32, 76,650.12 and 39,663.72

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Solution

The fourth proportional to 55,570.32, 76,650.12 and 39,663.72 is: 54,709.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,570.32 : 76,650.12 = 39,663.72 : x
  2. Step 2: Convert to fraction form
    55,570.32/76,650.12 = 39,663.72/x
  3. Step 3: Cross multiply
    55,570.32x = 76,650.12 × 39,663.72
  4. Step 4: Simplify right side
    55,570.32x = 3,040,228,897.65
  5. Step 5: Solve for x
    x = 3,040,228,897.65/55,570.32
  6. Step 6: Final answer
    x = 54,709.58

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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.