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Finding the Fourth Proportional to 77,546.68, 115,794.71 and 61,572.46

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Solution

The fourth proportional to 77,546.68, 115,794.71 and 61,572.46 is: 91,941.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,546.68 : 115,794.71 = 61,572.46 : x
  2. Step 2: Convert to fraction form
    77,546.68/115,794.71 = 61,572.46/x
  3. Step 3: Cross multiply
    77,546.68x = 115,794.71 × 61,572.46
  4. Step 4: Simplify right side
    77,546.68x = 7,129,765,149.69
  5. Step 5: Solve for x
    x = 7,129,765,149.69/77,546.68
  6. Step 6: Final answer
    x = 91,941.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.