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Finding the Fourth Proportional to 64,320.56, 96,490.17 and 19,950.89

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Solution

The fourth proportional to 64,320.56, 96,490.17 and 19,950.89 is: 29,929.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,320.56 : 96,490.17 = 19,950.89 : x
  2. Step 2: Convert to fraction form
    64,320.56/96,490.17 = 19,950.89/x
  3. Step 3: Cross multiply
    64,320.56x = 96,490.17 × 19,950.89
  4. Step 4: Simplify right side
    64,320.56x = 1,925,064,285.30
  5. Step 5: Solve for x
    x = 1,925,064,285.30/64,320.56
  6. Step 6: Final answer
    x = 29,929.22

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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.