Home / 78,937.20-118,406.84-26,346.66

Finding the Fourth Proportional to 78,937.20, 118,406.84 and 26,346.66

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Solution

The fourth proportional to 78,937.20, 118,406.84 and 26,346.66 is: 39,520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,937.20 : 118,406.84 = 26,346.66 : x
  2. Step 2: Convert to fraction form
    78,937.20/118,406.84 = 26,346.66/x
  3. Step 3: Cross multiply
    78,937.20x = 118,406.84 × 26,346.66
  4. Step 4: Simplify right side
    78,937.20x = 3,119,624,623.42
  5. Step 5: Solve for x
    x = 3,119,624,623.42/78,937.20
  6. Step 6: Final answer
    x = 39,520.34

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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.