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Finding the Fourth Proportional to 71,303.69, 98,400.25 and 39,037.76

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Solution

The fourth proportional to 71,303.69, 98,400.25 and 39,037.76 is: 53,872.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,303.69 : 98,400.25 = 39,037.76 : x
  2. Step 2: Convert to fraction form
    71,303.69/98,400.25 = 39,037.76/x
  3. Step 3: Cross multiply
    71,303.69x = 98,400.25 × 39,037.76
  4. Step 4: Simplify right side
    71,303.69x = 3,841,325,343.44
  5. Step 5: Solve for x
    x = 3,841,325,343.44/71,303.69
  6. Step 6: Final answer
    x = 53,872.75

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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.