Home / 55,156.32-76,113.36-30,005.76

Finding the Fourth Proportional to 55,156.32, 76,113.36 and 30,005.76

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Solution

The fourth proportional to 55,156.32, 76,113.36 and 30,005.76 is: 41,406.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,156.32 : 76,113.36 = 30,005.76 : x
  2. Step 2: Convert to fraction form
    55,156.32/76,113.36 = 30,005.76/x
  3. Step 3: Cross multiply
    55,156.32x = 76,113.36 × 30,005.76
  4. Step 4: Simplify right side
    55,156.32x = 2,283,839,212.95
  5. Step 5: Solve for x
    x = 2,283,839,212.95/55,156.32
  6. Step 6: Final answer
    x = 41,406.66

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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.