Home / 84,276.27-126,433.24-31,686.21

Finding the Fourth Proportional to 84,276.27, 126,433.24 and 31,686.21

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Solution

The fourth proportional to 84,276.27, 126,433.24 and 31,686.21 is: 47,536.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,276.27 : 126,433.24 = 31,686.21 : x
  2. Step 2: Convert to fraction form
    84,276.27/126,433.24 = 31,686.21/x
  3. Step 3: Cross multiply
    84,276.27x = 126,433.24 × 31,686.21
  4. Step 4: Simplify right side
    84,276.27x = 4,006,190,114.40
  5. Step 5: Solve for x
    x = 4,006,190,114.40/84,276.27
  6. Step 6: Final answer
    x = 47,536.40

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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.