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Finding the Fourth Proportional to 64,237.70, 96,342.15 and 42,205.70

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Solution

The fourth proportional to 64,237.70, 96,342.15 and 42,205.70 is: 63,299.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,237.70 : 96,342.15 = 42,205.70 : x
  2. Step 2: Convert to fraction form
    64,237.70/96,342.15 = 42,205.70/x
  3. Step 3: Cross multiply
    64,237.70x = 96,342.15 × 42,205.70
  4. Step 4: Simplify right side
    64,237.70x = 4,066,187,880.26
  5. Step 5: Solve for x
    x = 4,066,187,880.26/64,237.70
  6. Step 6: Final answer
    x = 63,299.09

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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.