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Finding the Fourth Proportional to 64,320.59, 96,490.22 and 19,950.91

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Solution

The fourth proportional to 64,320.59, 96,490.22 and 19,950.91 is: 29,929.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,320.59 : 96,490.22 = 19,950.91 : x
  2. Step 2: Convert to fraction form
    64,320.59/96,490.22 = 19,950.91/x
  3. Step 3: Cross multiply
    64,320.59x = 96,490.22 × 19,950.91
  4. Step 4: Simplify right side
    64,320.59x = 1,925,067,112.89
  5. Step 5: Solve for x
    x = 1,925,067,112.89/64,320.59
  6. Step 6: Final answer
    x = 29,929.25

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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.