Home / 77,440.10-116,135.51-52,639.52

Finding the Fourth Proportional to 77,440.10, 116,135.51 and 52,639.52

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Solution

The fourth proportional to 77,440.10, 116,135.51 and 52,639.52 is: 78,942.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,440.10 : 116,135.51 = 52,639.52 : x
  2. Step 2: Convert to fraction form
    77,440.10/116,135.51 = 52,639.52/x
  3. Step 3: Cross multiply
    77,440.10x = 116,135.51 × 52,639.52
  4. Step 4: Simplify right side
    77,440.10x = 6,113,316,657.48
  5. Step 5: Solve for x
    x = 6,113,316,657.48/77,440.10
  6. Step 6: Final answer
    x = 78,942.53

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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.