Home / 85,154.59-117,513.36-47,428.84

Finding the Fourth Proportional to 85,154.59, 117,513.36 and 47,428.84

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Solution

The fourth proportional to 85,154.59, 117,513.36 and 47,428.84 is: 65,451.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,154.59 : 117,513.36 = 47,428.84 : x
  2. Step 2: Convert to fraction form
    85,154.59/117,513.36 = 47,428.84/x
  3. Step 3: Cross multiply
    85,154.59x = 117,513.36 × 47,428.84
  4. Step 4: Simplify right side
    85,154.59x = 5,573,522,349.30
  5. Step 5: Solve for x
    x = 5,573,522,349.30/85,154.59
  6. Step 6: Final answer
    x = 65,451.81

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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.