Home / 90,329.54-135,455.01-48,200.30

Finding the Fourth Proportional to 90,329.54, 135,455.01 and 48,200.30

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Solution

The fourth proportional to 90,329.54, 135,455.01 and 48,200.30 is: 72,279.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,329.54 : 135,455.01 = 48,200.30 : x
  2. Step 2: Convert to fraction form
    90,329.54/135,455.01 = 48,200.30/x
  3. Step 3: Cross multiply
    90,329.54x = 135,455.01 × 48,200.30
  4. Step 4: Simplify right side
    90,329.54x = 6,528,971,441.23
  5. Step 5: Solve for x
    x = 6,528,971,441.23/90,329.54
  6. Step 6: Final answer
    x = 72,279.48

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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.