Home / 77,045.20-115,567.80-37,627.60

Finding the Fourth Proportional to 77,045.20, 115,567.80 and 37,627.60

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Solution

The fourth proportional to 77,045.20, 115,567.80 and 37,627.60 is: 56,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,045.20 : 115,567.80 = 37,627.60 : x
  2. Step 2: Convert to fraction form
    77,045.20/115,567.80 = 37,627.60/x
  3. Step 3: Cross multiply
    77,045.20x = 115,567.80 × 37,627.60
  4. Step 4: Simplify right side
    77,045.20x = 4,348,538,951.28
  5. Step 5: Solve for x
    x = 4,348,538,951.28/77,045.20
  6. Step 6: Final answer
    x = 56,441.40

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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.