Home / 77,312.60-115,968.90-52,736.60

Finding the Fourth Proportional to 77,312.60, 115,968.90 and 52,736.60

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Solution

The fourth proportional to 77,312.60, 115,968.90 and 52,736.60 is: 79,104.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,312.60 : 115,968.90 = 52,736.60 : x
  2. Step 2: Convert to fraction form
    77,312.60/115,968.90 = 52,736.60/x
  3. Step 3: Cross multiply
    77,312.60x = 115,968.90 × 52,736.60
  4. Step 4: Simplify right side
    77,312.60x = 6,115,805,491.74
  5. Step 5: Solve for x
    x = 6,115,805,491.74/77,312.60
  6. Step 6: Final answer
    x = 79,104.90

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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.