Home / 77,365.60-115,939.05-47,695.30

Finding the Fourth Proportional to 77,365.60, 115,939.05 and 47,695.30

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Solution

The fourth proportional to 77,365.60, 115,939.05 and 47,695.30 is: 71,475.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,365.60 : 115,939.05 = 47,695.30 : x
  2. Step 2: Convert to fraction form
    77,365.60/115,939.05 = 47,695.30/x
  3. Step 3: Cross multiply
    77,365.60x = 115,939.05 × 47,695.30
  4. Step 4: Simplify right side
    77,365.60x = 5,529,747,771.47
  5. Step 5: Solve for x
    x = 5,529,747,771.47/77,365.60
  6. Step 6: Final answer
    x = 71,475.54

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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.