Home / 42,729.53-64,074.80-17,754.66

Finding the Fourth Proportional to 42,729.53, 64,074.80 and 17,754.66

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Solution

The fourth proportional to 42,729.53, 64,074.80 and 17,754.66 is: 26,623.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,729.53 : 64,074.80 = 17,754.66 : x
  2. Step 2: Convert to fraction form
    42,729.53/64,074.80 = 17,754.66/x
  3. Step 3: Cross multiply
    42,729.53x = 64,074.80 × 17,754.66
  4. Step 4: Simplify right side
    42,729.53x = 1,137,626,332.95
  5. Step 5: Solve for x
    x = 1,137,626,332.95/42,729.53
  6. Step 6: Final answer
    x = 26,623.89

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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.