Home / 71,421.74-98,552.94-39,590.36

Finding the Fourth Proportional to 71,421.74, 98,552.94 and 39,590.36

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Solution

The fourth proportional to 71,421.74, 98,552.94 and 39,590.36 is: 54,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,421.74 : 98,552.94 = 39,590.36 : x
  2. Step 2: Convert to fraction form
    71,421.74/98,552.94 = 39,590.36/x
  3. Step 3: Cross multiply
    71,421.74x = 98,552.94 × 39,590.36
  4. Step 4: Simplify right side
    71,421.74x = 3,901,746,373.66
  5. Step 5: Solve for x
    x = 3,901,746,373.66/71,421.74
  6. Step 6: Final answer
    x = 54,629.67

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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.