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Finding the Fourth Proportional to 76,959.48, 115,438.48 and 41,437.40

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Solution

The fourth proportional to 76,959.48, 115,438.48 and 41,437.40 is: 62,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,959.48 : 115,438.48 = 41,437.40 : x
  2. Step 2: Convert to fraction form
    76,959.48/115,438.48 = 41,437.40/x
  3. Step 3: Cross multiply
    76,959.48x = 115,438.48 × 41,437.40
  4. Step 4: Simplify right side
    76,959.48x = 4,783,470,471.15
  5. Step 5: Solve for x
    x = 4,783,470,471.15/76,959.48
  6. Step 6: Final answer
    x = 62,155.70

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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.