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Finding the Fourth Proportional to 76,327.30, 114,490.95 and 26,390.80

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Solution

The fourth proportional to 76,327.30, 114,490.95 and 26,390.80 is: 39,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,327.30 : 114,490.95 = 26,390.80 : x
  2. Step 2: Convert to fraction form
    76,327.30/114,490.95 = 26,390.80/x
  3. Step 3: Cross multiply
    76,327.30x = 114,490.95 × 26,390.80
  4. Step 4: Simplify right side
    76,327.30x = 3,021,507,763.26
  5. Step 5: Solve for x
    x = 3,021,507,763.26/76,327.30
  6. Step 6: Final answer
    x = 39,586.20

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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.