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Finding the Fourth Proportional to 64,308.35, 96,495.45 and 30,612.50

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Solution

The fourth proportional to 64,308.35, 96,495.45 and 30,612.50 is: 45,934.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,308.35 : 96,495.45 = 30,612.50 : x
  2. Step 2: Convert to fraction form
    64,308.35/96,495.45 = 30,612.50/x
  3. Step 3: Cross multiply
    64,308.35x = 96,495.45 × 30,612.50
  4. Step 4: Simplify right side
    64,308.35x = 2,953,966,899.90
  5. Step 5: Solve for x
    x = 2,953,966,899.90/64,308.35
  6. Step 6: Final answer
    x = 45,934.42

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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.