Home / 88,331.40-132,302.70-53,209.80

Finding the Fourth Proportional to 88,331.40, 132,302.70 and 53,209.80

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Solution

The fourth proportional to 88,331.40, 132,302.70 and 53,209.80 is: 79,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,331.40 : 132,302.70 = 53,209.80 : x
  2. Step 2: Convert to fraction form
    88,331.40/132,302.70 = 53,209.80/x
  3. Step 3: Cross multiply
    88,331.40x = 132,302.70 × 53,209.80
  4. Step 4: Simplify right side
    88,331.40x = 7,039,800,206.46
  5. Step 5: Solve for x
    x = 7,039,800,206.46/88,331.40
  6. Step 6: Final answer
    x = 79,697.60

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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.