Home / 91,820.07-137,731.32-52,330.14

Finding the Fourth Proportional to 91,820.07, 137,731.32 and 52,330.14

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Solution

The fourth proportional to 91,820.07, 137,731.32 and 52,330.14 is: 78,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,820.07 : 137,731.32 = 52,330.14 : x
  2. Step 2: Convert to fraction form
    91,820.07/137,731.32 = 52,330.14/x
  3. Step 3: Cross multiply
    91,820.07x = 137,731.32 × 52,330.14
  4. Step 4: Simplify right side
    91,820.07x = 7,207,499,257.98
  5. Step 5: Solve for x
    x = 7,207,499,257.98/91,820.07
  6. Step 6: Final answer
    x = 78,495.90

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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.