Home / 51,421.60-77,132.40-50,730.40

Finding the Fourth Proportional to 51,421.60, 77,132.40 and 50,730.40

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Solution

The fourth proportional to 51,421.60, 77,132.40 and 50,730.40 is: 76,095.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,421.60 : 77,132.40 = 50,730.40 : x
  2. Step 2: Convert to fraction form
    51,421.60/77,132.40 = 50,730.40/x
  3. Step 3: Cross multiply
    51,421.60x = 77,132.40 × 50,730.40
  4. Step 4: Simplify right side
    51,421.60x = 3,912,957,504.96
  5. Step 5: Solve for x
    x = 3,912,957,504.96/51,421.60
  6. Step 6: Final answer
    x = 76,095.60

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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.