Home / 92,941.50-128,259.24-55,215.76

Finding the Fourth Proportional to 92,941.50, 128,259.24 and 55,215.76

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Solution

The fourth proportional to 92,941.50, 128,259.24 and 55,215.76 is: 76,197.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,941.50 : 128,259.24 = 55,215.76 : x
  2. Step 2: Convert to fraction form
    92,941.50/128,259.24 = 55,215.76/x
  3. Step 3: Cross multiply
    92,941.50x = 128,259.24 × 55,215.76
  4. Step 4: Simplify right side
    92,941.50x = 7,081,931,413.62
  5. Step 5: Solve for x
    x = 7,081,931,413.62/92,941.50
  6. Step 6: Final answer
    x = 76,197.73

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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.