Home / 89,909.40-134,864.10-30,730.80

Finding the Fourth Proportional to 89,909.40, 134,864.10 and 30,730.80

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Solution

The fourth proportional to 89,909.40, 134,864.10 and 30,730.80 is: 46,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,909.40 : 134,864.10 = 30,730.80 : x
  2. Step 2: Convert to fraction form
    89,909.40/134,864.10 = 30,730.80/x
  3. Step 3: Cross multiply
    89,909.40x = 134,864.10 × 30,730.80
  4. Step 4: Simplify right side
    89,909.40x = 4,144,481,684.28
  5. Step 5: Solve for x
    x = 4,144,481,684.28/89,909.40
  6. Step 6: Final answer
    x = 46,096.20

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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.