Home / 92,679.11-128,003.46-60,989.48

Finding the Fourth Proportional to 92,679.11, 128,003.46 and 60,989.48

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Solution

The fourth proportional to 92,679.11, 128,003.46 and 60,989.48 is: 84,235.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,679.11 : 128,003.46 = 60,989.48 : x
  2. Step 2: Convert to fraction form
    92,679.11/128,003.46 = 60,989.48/x
  3. Step 3: Cross multiply
    92,679.11x = 128,003.46 × 60,989.48
  4. Step 4: Simplify right side
    92,679.11x = 7,806,864,463.60
  5. Step 5: Solve for x
    x = 7,806,864,463.60/92,679.11
  6. Step 6: Final answer
    x = 84,235.43

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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.