Home / 89,629.40-134,444.10-30,531.80

Finding the Fourth Proportional to 89,629.40, 134,444.10 and 30,531.80

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Solution

The fourth proportional to 89,629.40, 134,444.10 and 30,531.80 is: 45,797.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,629.40 : 134,444.10 = 30,531.80 : x
  2. Step 2: Convert to fraction form
    89,629.40/134,444.10 = 30,531.80/x
  3. Step 3: Cross multiply
    89,629.40x = 134,444.10 × 30,531.80
  4. Step 4: Simplify right side
    89,629.40x = 4,104,820,372.38
  5. Step 5: Solve for x
    x = 4,104,820,372.38/89,629.40
  6. Step 6: Final answer
    x = 45,797.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.