Home / 55,751.33-76,937.78-31,878.20

Finding the Fourth Proportional to 55,751.33, 76,937.78 and 31,878.20

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Solution

The fourth proportional to 55,751.33, 76,937.78 and 31,878.20 is: 43,992.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,751.33 : 76,937.78 = 31,878.20 : x
  2. Step 2: Convert to fraction form
    55,751.33/76,937.78 = 31,878.20/x
  3. Step 3: Cross multiply
    55,751.33x = 76,937.78 × 31,878.20
  4. Step 4: Simplify right side
    55,751.33x = 2,452,637,938.40
  5. Step 5: Solve for x
    x = 2,452,637,938.40/55,751.33
  6. Step 6: Final answer
    x = 43,992.46

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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.