Home / 80,653.04-120,941.40-28,055.96

Finding the Fourth Proportional to 80,653.04, 120,941.40 and 28,055.96

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Solution

The fourth proportional to 80,653.04, 120,941.40 and 28,055.96 is: 42,070.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,653.04 : 120,941.40 = 28,055.96 : x
  2. Step 2: Convert to fraction form
    80,653.04/120,941.40 = 28,055.96/x
  3. Step 3: Cross multiply
    80,653.04x = 120,941.40 × 28,055.96
  4. Step 4: Simplify right side
    80,653.04x = 3,393,127,080.74
  5. Step 5: Solve for x
    x = 3,393,127,080.74/80,653.04
  6. Step 6: Final answer
    x = 42,070.67

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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.