Home / 55,127.84-76,074.11-31,256.12

Finding the Fourth Proportional to 55,127.84, 76,074.11 and 31,256.12

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Solution

The fourth proportional to 55,127.84, 76,074.11 and 31,256.12 is: 43,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,127.84 : 76,074.11 = 31,256.12 : x
  2. Step 2: Convert to fraction form
    55,127.84/76,074.11 = 31,256.12/x
  3. Step 3: Cross multiply
    55,127.84x = 76,074.11 × 31,256.12
  4. Step 4: Simplify right side
    55,127.84x = 2,377,781,354.77
  5. Step 5: Solve for x
    x = 2,377,781,354.77/55,127.84
  6. Step 6: Final answer
    x = 43,132.13

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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.