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Finding the Fourth Proportional to 64,520.70, 96,741.73 and 28,975.11

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Solution

The fourth proportional to 64,520.70, 96,741.73 and 28,975.11 is: 43,445.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,520.70 : 96,741.73 = 28,975.11 : x
  2. Step 2: Convert to fraction form
    64,520.70/96,741.73 = 28,975.11/x
  3. Step 3: Cross multiply
    64,520.70x = 96,741.73 × 28,975.11
  4. Step 4: Simplify right side
    64,520.70x = 2,803,102,123.46
  5. Step 5: Solve for x
    x = 2,803,102,123.46/64,520.70
  6. Step 6: Final answer
    x = 43,445.00

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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.