Home / 47,742.76-65,892.90-39,772.36

Finding the Fourth Proportional to 47,742.76, 65,892.90 and 39,772.36

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Solution

The fourth proportional to 47,742.76, 65,892.90 and 39,772.36 is: 54,892.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,742.76 : 65,892.90 = 39,772.36 : x
  2. Step 2: Convert to fraction form
    47,742.76/65,892.90 = 39,772.36/x
  3. Step 3: Cross multiply
    47,742.76x = 65,892.90 × 39,772.36
  4. Step 4: Simplify right side
    47,742.76x = 2,620,716,140.24
  5. Step 5: Solve for x
    x = 2,620,716,140.24/47,742.76
  6. Step 6: Final answer
    x = 54,892.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.