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Finding the Fourth Proportional to 88,338.84, 121,904.10 and 50,605.80

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Solution

The fourth proportional to 88,338.84, 121,904.10 and 50,605.80 is: 69,834.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,338.84 : 121,904.10 = 50,605.80 : x
  2. Step 2: Convert to fraction form
    88,338.84/121,904.10 = 50,605.80/x
  3. Step 3: Cross multiply
    88,338.84x = 121,904.10 × 50,605.80
  4. Step 4: Simplify right side
    88,338.84x = 6,169,054,503.78
  5. Step 5: Solve for x
    x = 6,169,054,503.78/88,338.84
  6. Step 6: Final answer
    x = 69,834.00

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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.