Home / 55,768.08-76,938-31,881.92

Finding the Fourth Proportional to 55,768.08, 76,938 and 31,881.92

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Solution

The fourth proportional to 55,768.08, 76,938 and 31,881.92 is: 43,984.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,768.08 : 76,938 = 31,881.92 : x
  2. Step 2: Convert to fraction form
    55,768.08/76,938 = 31,881.92/x
  3. Step 3: Cross multiply
    55,768.08x = 76,938 × 31,881.92
  4. Step 4: Simplify right side
    55,768.08x = 2,452,931,160.96
  5. Step 5: Solve for x
    x = 2,452,931,160.96/55,768.08
  6. Step 6: Final answer
    x = 43,984.50

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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.