Home / 77,342.40-115,946.64-46,112.04

Finding the Fourth Proportional to 77,342.40, 115,946.64 and 46,112.04

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Solution

The fourth proportional to 77,342.40, 115,946.64 and 46,112.04 is: 69,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,342.40 : 115,946.64 = 46,112.04 : x
  2. Step 2: Convert to fraction form
    77,342.40/115,946.64 = 46,112.04/x
  3. Step 3: Cross multiply
    77,342.40x = 115,946.64 × 46,112.04
  4. Step 4: Simplify right side
    77,342.40x = 5,346,536,101.55
  5. Step 5: Solve for x
    x = 5,346,536,101.55/77,342.40
  6. Step 6: Final answer
    x = 69,128.14

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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.