Home / 61,811.72-92,734.86-20,287.88

Finding the Fourth Proportional to 61,811.72, 92,734.86 and 20,287.88

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Solution

The fourth proportional to 61,811.72, 92,734.86 and 20,287.88 is: 30,437.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,811.72 : 92,734.86 = 20,287.88 : x
  2. Step 2: Convert to fraction form
    61,811.72/92,734.86 = 20,287.88/x
  3. Step 3: Cross multiply
    61,811.72x = 92,734.86 × 20,287.88
  4. Step 4: Simplify right side
    61,811.72x = 1,881,393,711.50
  5. Step 5: Solve for x
    x = 1,881,393,711.50/61,811.72
  6. Step 6: Final answer
    x = 30,437.49

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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.