Home / 84,875.49-117,137.07-47,149.74

Finding the Fourth Proportional to 84,875.49, 117,137.07 and 47,149.74

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Solution

The fourth proportional to 84,875.49, 117,137.07 and 47,149.74 is: 65,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,875.49 : 117,137.07 = 47,149.74 : x
  2. Step 2: Convert to fraction form
    84,875.49/117,137.07 = 47,149.74/x
  3. Step 3: Cross multiply
    84,875.49x = 117,137.07 × 47,149.74
  4. Step 4: Simplify right side
    84,875.49x = 5,522,982,394.86
  5. Step 5: Solve for x
    x = 5,522,982,394.86/84,875.49
  6. Step 6: Final answer
    x = 65,071.58

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1.5x scale

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.