Home / 51,208.60-76,812.90-47,709.40

Finding the Fourth Proportional to 51,208.60, 76,812.90 and 47,709.40

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Solution

The fourth proportional to 51,208.60, 76,812.90 and 47,709.40 is: 71,564.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,208.60 : 76,812.90 = 47,709.40 : x
  2. Step 2: Convert to fraction form
    51,208.60/76,812.90 = 47,709.40/x
  3. Step 3: Cross multiply
    51,208.60x = 76,812.90 × 47,709.40
  4. Step 4: Simplify right side
    51,208.60x = 3,664,697,371.26
  5. Step 5: Solve for x
    x = 3,664,697,371.26/51,208.60
  6. Step 6: Final answer
    x = 71,564.10

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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.