Home / 75,147.04-103,679.40-43,311.58

Finding the Fourth Proportional to 75,147.04, 103,679.40 and 43,311.58

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Solution

The fourth proportional to 75,147.04, 103,679.40 and 43,311.58 is: 59,756.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,147.04 : 103,679.40 = 43,311.58 : x
  2. Step 2: Convert to fraction form
    75,147.04/103,679.40 = 43,311.58/x
  3. Step 3: Cross multiply
    75,147.04x = 103,679.40 × 43,311.58
  4. Step 4: Simplify right side
    75,147.04x = 4,490,518,627.45
  5. Step 5: Solve for x
    x = 4,490,518,627.45/75,147.04
  6. Step 6: Final answer
    x = 59,756.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.