Home / 55,688.16-76,851-30,537.84

Finding the Fourth Proportional to 55,688.16, 76,851 and 30,537.84

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Solution

The fourth proportional to 55,688.16, 76,851 and 30,537.84 is: 42,142.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,688.16 : 76,851 = 30,537.84 : x
  2. Step 2: Convert to fraction form
    55,688.16/76,851 = 30,537.84/x
  3. Step 3: Cross multiply
    55,688.16x = 76,851 × 30,537.84
  4. Step 4: Simplify right side
    55,688.16x = 2,346,863,541.84
  5. Step 5: Solve for x
    x = 2,346,863,541.84/55,688.16
  6. Step 6: Final answer
    x = 42,142.95

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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.