Home / 85,284.34-117,740.52-59,137.54

Finding the Fourth Proportional to 85,284.34, 117,740.52 and 59,137.54

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Solution

The fourth proportional to 85,284.34, 117,740.52 and 59,137.54 is: 81,643.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,284.34 : 117,740.52 = 59,137.54 : x
  2. Step 2: Convert to fraction form
    85,284.34/117,740.52 = 59,137.54/x
  3. Step 3: Cross multiply
    85,284.34x = 117,740.52 × 59,137.54
  4. Step 4: Simplify right side
    85,284.34x = 6,962,884,711.12
  5. Step 5: Solve for x
    x = 6,962,884,711.12/85,284.34
  6. Step 6: Final answer
    x = 81,643.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.