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Finding the Fourth Proportional to 77,094.40, 115,411.20 and 45,913.60

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Solution

The fourth proportional to 77,094.40, 115,411.20 and 45,913.60 is: 68,733.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,094.40 : 115,411.20 = 45,913.60 : x
  2. Step 2: Convert to fraction form
    77,094.40/115,411.20 = 45,913.60/x
  3. Step 3: Cross multiply
    77,094.40x = 115,411.20 × 45,913.60
  4. Step 4: Simplify right side
    77,094.40x = 5,298,943,672.32
  5. Step 5: Solve for x
    x = 5,298,943,672.32/77,094.40
  6. Step 6: Final answer
    x = 68,733.19

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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.