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Finding the Fourth Proportional to 77,250.50, 115,927.69 and 27,330.40

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Solution

The fourth proportional to 77,250.50, 115,927.69 and 27,330.40 is: 41,013.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,250.50 : 115,927.69 = 27,330.40 : x
  2. Step 2: Convert to fraction form
    77,250.50/115,927.69 = 27,330.40/x
  3. Step 3: Cross multiply
    77,250.50x = 115,927.69 × 27,330.40
  4. Step 4: Simplify right side
    77,250.50x = 3,168,350,138.78
  5. Step 5: Solve for x
    x = 3,168,350,138.78/77,250.50
  6. Step 6: Final answer
    x = 41,013.98

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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.