Home / 74,217.25-102,426.29-40,689.73

Finding the Fourth Proportional to 74,217.25, 102,426.29 and 40,689.73

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Solution

The fourth proportional to 74,217.25, 102,426.29 and 40,689.73 is: 56,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,217.25 : 102,426.29 = 40,689.73 : x
  2. Step 2: Convert to fraction form
    74,217.25/102,426.29 = 40,689.73/x
  3. Step 3: Cross multiply
    74,217.25x = 102,426.29 × 40,689.73
  4. Step 4: Simplify right side
    74,217.25x = 4,167,698,085.00
  5. Step 5: Solve for x
    x = 4,167,698,085.00/74,217.25
  6. Step 6: Final answer
    x = 56,155.38

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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.