Home / 64,946.80-97,420.20-39,905.65

Finding the Fourth Proportional to 64,946.80, 97,420.20 and 39,905.65

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Solution

The fourth proportional to 64,946.80, 97,420.20 and 39,905.65 is: 59,858.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,946.80 : 97,420.20 = 39,905.65 : x
  2. Step 2: Convert to fraction form
    64,946.80/97,420.20 = 39,905.65/x
  3. Step 3: Cross multiply
    64,946.80x = 97,420.20 × 39,905.65
  4. Step 4: Simplify right side
    64,946.80x = 3,887,616,404.13
  5. Step 5: Solve for x
    x = 3,887,616,404.13/64,946.80
  6. Step 6: Final answer
    x = 59,858.48

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Similar ratio
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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.