Home / 76,271.90-114,427.76-28,887.30

Finding the Fourth Proportional to 76,271.90, 114,427.76 and 28,887.30

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Solution

The fourth proportional to 76,271.90, 114,427.76 and 28,887.30 is: 43,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,271.90 : 114,427.76 = 28,887.30 : x
  2. Step 2: Convert to fraction form
    76,271.90/114,427.76 = 28,887.30/x
  3. Step 3: Cross multiply
    76,271.90x = 114,427.76 × 28,887.30
  4. Step 4: Simplify right side
    76,271.90x = 3,305,508,887.01
  5. Step 5: Solve for x
    x = 3,305,508,887.01/76,271.90
  6. Step 6: Final answer
    x = 43,338.49

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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.