Home / 55,904.94-77,145.42-30,411.12

Finding the Fourth Proportional to 55,904.94, 77,145.42 and 30,411.12

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Solution

The fourth proportional to 55,904.94, 77,145.42 and 30,411.12 is: 41,965.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,904.94 : 77,145.42 = 30,411.12 : x
  2. Step 2: Convert to fraction form
    55,904.94/77,145.42 = 30,411.12/x
  3. Step 3: Cross multiply
    55,904.94x = 77,145.42 × 30,411.12
  4. Step 4: Simplify right side
    55,904.94x = 2,346,078,625.07
  5. Step 5: Solve for x
    x = 2,346,078,625.07/55,904.94
  6. Step 6: Final answer
    x = 41,965.50

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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.