Home / 71,663.20-98,898.56-39,832.63

Finding the Fourth Proportional to 71,663.20, 98,898.56 and 39,832.63

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Solution

The fourth proportional to 71,663.20, 98,898.56 and 39,832.63 is: 54,970.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,663.20 : 98,898.56 = 39,832.63 : x
  2. Step 2: Convert to fraction form
    71,663.20/98,898.56 = 39,832.63/x
  3. Step 3: Cross multiply
    71,663.20x = 98,898.56 × 39,832.63
  4. Step 4: Simplify right side
    71,663.20x = 3,939,389,748.01
  5. Step 5: Solve for x
    x = 3,939,389,748.01/71,663.20
  6. Step 6: Final answer
    x = 54,970.89

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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.