Home / 70,634.85-97,473.96-40,423.20

Finding the Fourth Proportional to 70,634.85, 97,473.96 and 40,423.20

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Solution

The fourth proportional to 70,634.85, 97,473.96 and 40,423.20 is: 55,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,634.85 : 97,473.96 = 40,423.20 : x
  2. Step 2: Convert to fraction form
    70,634.85/97,473.96 = 40,423.20/x
  3. Step 3: Cross multiply
    70,634.85x = 97,473.96 × 40,423.20
  4. Step 4: Simplify right side
    70,634.85x = 3,940,209,379.87
  5. Step 5: Solve for x
    x = 3,940,209,379.87/70,634.85
  6. Step 6: Final answer
    x = 55,782.80

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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.