Home / 84,860.32-117,128.64-49,071.04

Finding the Fourth Proportional to 84,860.32, 117,128.64 and 49,071.04

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Solution

The fourth proportional to 84,860.32, 117,128.64 and 49,071.04 is: 67,730.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,860.32 : 117,128.64 = 49,071.04 : x
  2. Step 2: Convert to fraction form
    84,860.32/117,128.64 = 49,071.04/x
  3. Step 3: Cross multiply
    84,860.32x = 117,128.64 × 49,071.04
  4. Step 4: Simplify right side
    84,860.32x = 5,747,624,178.59
  5. Step 5: Solve for x
    x = 5,747,624,178.59/84,860.32
  6. Step 6: Final answer
    x = 67,730.41

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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.