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Finding the Fourth Proportional to 85,567.47, 128,281.77 and 35,684.97

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Solution

The fourth proportional to 85,567.47, 128,281.77 and 35,684.97 is: 53,498.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,567.47 : 128,281.77 = 35,684.97 : x
  2. Step 2: Convert to fraction form
    85,567.47/128,281.77 = 35,684.97/x
  3. Step 3: Cross multiply
    85,567.47x = 128,281.77 × 35,684.97
  4. Step 4: Simplify right side
    85,567.47x = 4,577,731,114.00
  5. Step 5: Solve for x
    x = 4,577,731,114.00/85,567.47
  6. Step 6: Final answer
    x = 53,498.50

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.