Home / 80,850.40-121,275.60-47,586.40

Finding the Fourth Proportional to 80,850.40, 121,275.60 and 47,586.40

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Solution

The fourth proportional to 80,850.40, 121,275.60 and 47,586.40 is: 71,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,850.40 : 121,275.60 = 47,586.40 : x
  2. Step 2: Convert to fraction form
    80,850.40/121,275.60 = 47,586.40/x
  3. Step 3: Cross multiply
    80,850.40x = 121,275.60 × 47,586.40
  4. Step 4: Simplify right side
    80,850.40x = 5,771,069,211.84
  5. Step 5: Solve for x
    x = 5,771,069,211.84/80,850.40
  6. Step 6: Final answer
    x = 71,379.60

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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.