Home / 79,623.40-119,435.10-71,021.80

Finding the Fourth Proportional to 79,623.40, 119,435.10 and 71,021.80

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Solution

The fourth proportional to 79,623.40, 119,435.10 and 71,021.80 is: 106,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,623.40 : 119,435.10 = 71,021.80 : x
  2. Step 2: Convert to fraction form
    79,623.40/119,435.10 = 71,021.80/x
  3. Step 3: Cross multiply
    79,623.40x = 119,435.10 × 71,021.80
  4. Step 4: Simplify right side
    79,623.40x = 8,482,495,785.18
  5. Step 5: Solve for x
    x = 8,482,495,785.18/79,623.40
  6. Step 6: Final answer
    x = 106,532.70

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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.