Home / 76,931.22-115,420.32-37,482.60

Finding the Fourth Proportional to 76,931.22, 115,420.32 and 37,482.60

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Solution

The fourth proportional to 76,931.22, 115,420.32 and 37,482.60 is: 56,235.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,931.22 : 115,420.32 = 37,482.60 : x
  2. Step 2: Convert to fraction form
    76,931.22/115,420.32 = 37,482.60/x
  3. Step 3: Cross multiply
    76,931.22x = 115,420.32 × 37,482.60
  4. Step 4: Simplify right side
    76,931.22x = 4,326,253,686.43
  5. Step 5: Solve for x
    x = 4,326,253,686.43/76,931.22
  6. Step 6: Final answer
    x = 56,235.34

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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.