Home / 71,358.39-98,474.55-39,529.35

Finding the Fourth Proportional to 71,358.39, 98,474.55 and 39,529.35

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Solution

The fourth proportional to 71,358.39, 98,474.55 and 39,529.35 is: 54,550.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,358.39 : 98,474.55 = 39,529.35 : x
  2. Step 2: Convert to fraction form
    71,358.39/98,474.55 = 39,529.35/x
  3. Step 3: Cross multiply
    71,358.39x = 98,474.55 × 39,529.35
  4. Step 4: Simplify right side
    71,358.39x = 3,892,634,953.04
  5. Step 5: Solve for x
    x = 3,892,634,953.04/71,358.39
  6. Step 6: Final answer
    x = 54,550.49

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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.