Home / 81,197.20-112,051.74-45,387.10

Finding the Fourth Proportional to 81,197.20, 112,051.74 and 45,387.10

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Solution

The fourth proportional to 81,197.20, 112,051.74 and 45,387.10 is: 62,633.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,197.20 : 112,051.74 = 45,387.10 : x
  2. Step 2: Convert to fraction form
    81,197.20/112,051.74 = 45,387.10/x
  3. Step 3: Cross multiply
    81,197.20x = 112,051.74 × 45,387.10
  4. Step 4: Simplify right side
    81,197.20x = 5,085,703,528.55
  5. Step 5: Solve for x
    x = 5,085,703,528.55/81,197.20
  6. Step 6: Final answer
    x = 62,633.98

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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.