Home / 85,070.31-117,403.81-49,260.95

Finding the Fourth Proportional to 85,070.31, 117,403.81 and 49,260.95

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Solution

The fourth proportional to 85,070.31, 117,403.81 and 49,260.95 is: 67,984.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,070.31 : 117,403.81 = 49,260.95 : x
  2. Step 2: Convert to fraction form
    85,070.31/117,403.81 = 49,260.95/x
  3. Step 3: Cross multiply
    85,070.31x = 117,403.81 × 49,260.95
  4. Step 4: Simplify right side
    85,070.31x = 5,783,423,384.58
  5. Step 5: Solve for x
    x = 5,783,423,384.58/85,070.31
  6. Step 6: Final answer
    x = 67,984.04

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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.