Home / 78,766.76-118,048.08-31,994.12

Finding the Fourth Proportional to 78,766.76, 118,048.08 and 31,994.12

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Solution

The fourth proportional to 78,766.76, 118,048.08 and 31,994.12 is: 47,949.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,766.76 : 118,048.08 = 31,994.12 : x
  2. Step 2: Convert to fraction form
    78,766.76/118,048.08 = 31,994.12/x
  3. Step 3: Cross multiply
    78,766.76x = 118,048.08 × 31,994.12
  4. Step 4: Simplify right side
    78,766.76x = 3,776,844,437.29
  5. Step 5: Solve for x
    x = 3,776,844,437.29/78,766.76
  6. Step 6: Final answer
    x = 47,949.72

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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.