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Finding the Fourth Proportional to 85,662.19, 118,210.11 and 47,419.48

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Solution

The fourth proportional to 85,662.19, 118,210.11 and 47,419.48 is: 65,436.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,662.19 : 118,210.11 = 47,419.48 : x
  2. Step 2: Convert to fraction form
    85,662.19/118,210.11 = 47,419.48/x
  3. Step 3: Cross multiply
    85,662.19x = 118,210.11 × 47,419.48
  4. Step 4: Simplify right side
    85,662.19x = 5,605,461,946.94
  5. Step 5: Solve for x
    x = 5,605,461,946.94/85,662.19
  6. Step 6: Final answer
    x = 65,436.83

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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.