Home / 66,329.40-91,543.32-38,029.68

Finding the Fourth Proportional to 66,329.40, 91,543.32 and 38,029.68

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Solution

The fourth proportional to 66,329.40, 91,543.32 and 38,029.68 is: 52,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,329.40 : 91,543.32 = 38,029.68 : x
  2. Step 2: Convert to fraction form
    66,329.40/91,543.32 = 38,029.68/x
  3. Step 3: Cross multiply
    66,329.40x = 91,543.32 × 38,029.68
  4. Step 4: Simplify right side
    66,329.40x = 3,481,363,165.74
  5. Step 5: Solve for x
    x = 3,481,363,165.74/66,329.40
  6. Step 6: Final answer
    x = 52,485.97

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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.