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Finding the Fourth Proportional to 64,999.90, 97,435.05 and 29,878.30

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Solution

The fourth proportional to 64,999.90, 97,435.05 and 29,878.30 is: 44,787.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,999.90 : 97,435.05 = 29,878.30 : x
  2. Step 2: Convert to fraction form
    64,999.90/97,435.05 = 29,878.30/x
  3. Step 3: Cross multiply
    64,999.90x = 97,435.05 × 29,878.30
  4. Step 4: Simplify right side
    64,999.90x = 2,911,193,654.42
  5. Step 5: Solve for x
    x = 2,911,193,654.42/64,999.90
  6. Step 6: Final answer
    x = 44,787.66

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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.