Home / 71,309.36-98,403.17-39,037.80

Finding the Fourth Proportional to 71,309.36, 98,403.17 and 39,037.80

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Solution

The fourth proportional to 71,309.36, 98,403.17 and 39,037.80 is: 53,870.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,309.36 : 98,403.17 = 39,037.80 : x
  2. Step 2: Convert to fraction form
    71,309.36/98,403.17 = 39,037.80/x
  3. Step 3: Cross multiply
    71,309.36x = 98,403.17 × 39,037.80
  4. Step 4: Simplify right side
    71,309.36x = 3,841,443,269.83
  5. Step 5: Solve for x
    x = 3,841,443,269.83/71,309.36
  6. Step 6: Final answer
    x = 53,870.11

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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.