Home / 78,293.58-117,473.31-31,534.98

Finding the Fourth Proportional to 78,293.58, 117,473.31 and 31,534.98

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Solution

The fourth proportional to 78,293.58, 117,473.31 and 31,534.98 is: 47,315.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,293.58 : 117,473.31 = 31,534.98 : x
  2. Step 2: Convert to fraction form
    78,293.58/117,473.31 = 31,534.98/x
  3. Step 3: Cross multiply
    78,293.58x = 117,473.31 × 31,534.98
  4. Step 4: Simplify right side
    78,293.58x = 3,704,518,481.38
  5. Step 5: Solve for x
    x = 3,704,518,481.38/78,293.58
  6. Step 6: Final answer
    x = 47,315.74

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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.