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Finding the Fourth Proportional to 85,133.60, 117,483.68 and 47,407.04

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Solution

The fourth proportional to 85,133.60, 117,483.68 and 47,407.04 is: 65,421.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,133.60 : 117,483.68 = 47,407.04 : x
  2. Step 2: Convert to fraction form
    85,133.60/117,483.68 = 47,407.04/x
  3. Step 3: Cross multiply
    85,133.60x = 117,483.68 × 47,407.04
  4. Step 4: Simplify right side
    85,133.60x = 5,569,553,517.11
  5. Step 5: Solve for x
    x = 5,569,553,517.11/85,133.60
  6. Step 6: Final answer
    x = 65,421.33

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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.