Home / 77,166.30-115,606.17-39,749.07

Finding the Fourth Proportional to 77,166.30, 115,606.17 and 39,749.07

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Solution

The fourth proportional to 77,166.30, 115,606.17 and 39,749.07 is: 59,549.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,166.30 : 115,606.17 = 39,749.07 : x
  2. Step 2: Convert to fraction form
    77,166.30/115,606.17 = 39,749.07/x
  3. Step 3: Cross multiply
    77,166.30x = 115,606.17 × 39,749.07
  4. Step 4: Simplify right side
    77,166.30x = 4,595,237,743.76
  5. Step 5: Solve for x
    x = 4,595,237,743.76/77,166.30
  6. Step 6: Final answer
    x = 59,549.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.