Home / 71,420.34-98,556.48-39,588.96

Finding the Fourth Proportional to 71,420.34, 98,556.48 and 39,588.96

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Solution

The fourth proportional to 71,420.34, 98,556.48 and 39,588.96 is: 54,630.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,420.34 : 98,556.48 = 39,588.96 : x
  2. Step 2: Convert to fraction form
    71,420.34/98,556.48 = 39,588.96/x
  3. Step 3: Cross multiply
    71,420.34x = 98,556.48 × 39,588.96
  4. Step 4: Simplify right side
    71,420.34x = 3,901,748,544.46
  5. Step 5: Solve for x
    x = 3,901,748,544.46/71,420.34
  6. Step 6: Final answer
    x = 54,630.78

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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.