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Finding the Fourth Proportional to 64,987.75, 97,466.64 and 20,606.23

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Solution

The fourth proportional to 64,987.75, 97,466.64 and 20,606.23 is: 30,904.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,987.75 : 97,466.64 = 20,606.23 : x
  2. Step 2: Convert to fraction form
    64,987.75/97,466.64 = 20,606.23/x
  3. Step 3: Cross multiply
    64,987.75x = 97,466.64 × 20,606.23
  4. Step 4: Simplify right side
    64,987.75x = 2,008,420,001.17
  5. Step 5: Solve for x
    x = 2,008,420,001.17/64,987.75
  6. Step 6: Final answer
    x = 30,904.59

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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.