Home / 55,930.18-77,185.26-30,438.19

Finding the Fourth Proportional to 55,930.18, 77,185.26 and 30,438.19

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Solution

The fourth proportional to 55,930.18, 77,185.26 and 30,438.19 is: 42,005.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,930.18 : 77,185.26 = 30,438.19 : x
  2. Step 2: Convert to fraction form
    55,930.18/77,185.26 = 30,438.19/x
  3. Step 3: Cross multiply
    55,930.18x = 77,185.26 × 30,438.19
  4. Step 4: Simplify right side
    55,930.18x = 2,349,379,223.15
  5. Step 5: Solve for x
    x = 2,349,379,223.15/55,930.18
  6. Step 6: Final answer
    x = 42,005.58

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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.