Home / 71,329.48-98,434.66-39,498.37

Finding the Fourth Proportional to 71,329.48, 98,434.66 and 39,498.37

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Solution

The fourth proportional to 71,329.48, 98,434.66 and 39,498.37 is: 54,507.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,329.48 : 98,434.66 = 39,498.37 : x
  2. Step 2: Convert to fraction form
    71,329.48/98,434.66 = 39,498.37/x
  3. Step 3: Cross multiply
    71,329.48x = 98,434.66 × 39,498.37
  4. Step 4: Simplify right side
    71,329.48x = 3,888,008,621.50
  5. Step 5: Solve for x
    x = 3,888,008,621.50/71,329.48
  6. Step 6: Final answer
    x = 54,507.74

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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.