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Finding the Fourth Proportional to 84,902.40, 117,158.40 and 50,918.40

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Solution

The fourth proportional to 84,902.40, 117,158.40 and 50,918.40 is: 70,263.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,902.40 : 117,158.40 = 50,918.40 : x
  2. Step 2: Convert to fraction form
    84,902.40/117,158.40 = 50,918.40/x
  3. Step 3: Cross multiply
    84,902.40x = 117,158.40 × 50,918.40
  4. Step 4: Simplify right side
    84,902.40x = 5,965,518,274.56
  5. Step 5: Solve for x
    x = 5,965,518,274.56/84,902.40
  6. Step 6: Final answer
    x = 70,263.25

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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.