Home / 55,103.76-76,033.80-31,225.50

Finding the Fourth Proportional to 55,103.76, 76,033.80 and 31,225.50

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Solution

The fourth proportional to 55,103.76, 76,033.80 and 31,225.50 is: 43,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,103.76 : 76,033.80 = 31,225.50 : x
  2. Step 2: Convert to fraction form
    55,103.76/76,033.80 = 31,225.50/x
  3. Step 3: Cross multiply
    55,103.76x = 76,033.80 × 31,225.50
  4. Step 4: Simplify right side
    55,103.76x = 2,374,193,421.90
  5. Step 5: Solve for x
    x = 2,374,193,421.90/55,103.76
  6. Step 6: Final answer
    x = 43,085.87

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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.