Home / 55,965.07-77,232.32-30,815.47

Finding the Fourth Proportional to 55,965.07, 77,232.32 and 30,815.47

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Solution

The fourth proportional to 55,965.07, 77,232.32 and 30,815.47 is: 42,525.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,965.07 : 77,232.32 = 30,815.47 : x
  2. Step 2: Convert to fraction form
    55,965.07/77,232.32 = 30,815.47/x
  3. Step 3: Cross multiply
    55,965.07x = 77,232.32 × 30,815.47
  4. Step 4: Simplify right side
    55,965.07x = 2,379,950,239.99
  5. Step 5: Solve for x
    x = 2,379,950,239.99/55,965.07
  6. Step 6: Final answer
    x = 42,525.64

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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.