Home / 55,960.78-77,223.54-30,808.66

Finding the Fourth Proportional to 55,960.78, 77,223.54 and 30,808.66

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Solution

The fourth proportional to 55,960.78, 77,223.54 and 30,808.66 is: 42,514.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,960.78 : 77,223.54 = 30,808.66 : x
  2. Step 2: Convert to fraction form
    55,960.78/77,223.54 = 30,808.66/x
  3. Step 3: Cross multiply
    55,960.78x = 77,223.54 × 30,808.66
  4. Step 4: Simplify right side
    55,960.78x = 2,379,153,729.84
  5. Step 5: Solve for x
    x = 2,379,153,729.84/55,960.78
  6. Step 6: Final answer
    x = 42,514.66

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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.