Home / 55,184.29-76,153.23-30,985.81

Finding the Fourth Proportional to 55,184.29, 76,153.23 and 30,985.81

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Solution

The fourth proportional to 55,184.29, 76,153.23 and 30,985.81 is: 42,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,184.29 : 76,153.23 = 30,985.81 : x
  2. Step 2: Convert to fraction form
    55,184.29/76,153.23 = 30,985.81/x
  3. Step 3: Cross multiply
    55,184.29x = 76,153.23 × 30,985.81
  4. Step 4: Simplify right side
    55,184.29x = 2,359,669,325.28
  5. Step 5: Solve for x
    x = 2,359,669,325.28/55,184.29
  6. Step 6: Final answer
    x = 42,759.80

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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.