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Finding the Fourth Proportional to 76,073.88, 114,117.36 and 19,913.76

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Solution

The fourth proportional to 76,073.88, 114,117.36 and 19,913.76 is: 29,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,073.88 : 114,117.36 = 19,913.76 : x
  2. Step 2: Convert to fraction form
    76,073.88/114,117.36 = 19,913.76/x
  3. Step 3: Cross multiply
    76,073.88x = 114,117.36 × 19,913.76
  4. Step 4: Simplify right side
    76,073.88x = 2,272,505,718.87
  5. Step 5: Solve for x
    x = 2,272,505,718.87/76,073.88
  6. Step 6: Final answer
    x = 29,872.35

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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.