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Finding the Fourth Proportional to 64,859.80, 97,290.06 and 18,113.08

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Solution

The fourth proportional to 64,859.80, 97,290.06 and 18,113.08 is: 27,169.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,859.80 : 97,290.06 = 18,113.08 : x
  2. Step 2: Convert to fraction form
    64,859.80/97,290.06 = 18,113.08/x
  3. Step 3: Cross multiply
    64,859.80x = 97,290.06 × 18,113.08
  4. Step 4: Simplify right side
    64,859.80x = 1,762,222,639.98
  5. Step 5: Solve for x
    x = 1,762,222,639.98/64,859.80
  6. Step 6: Final answer
    x = 27,169.72

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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.