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Finding the Fourth Proportional to 66,888.61, 92,317.98 and 50,809.15

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Solution

The fourth proportional to 66,888.61, 92,317.98 and 50,809.15 is: 70,125.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,888.61 : 92,317.98 = 50,809.15 : x
  2. Step 2: Convert to fraction form
    66,888.61/92,317.98 = 50,809.15/x
  3. Step 3: Cross multiply
    66,888.61x = 92,317.98 × 50,809.15
  4. Step 4: Simplify right side
    66,888.61x = 4,690,597,594.36
  5. Step 5: Solve for x
    x = 4,690,597,594.36/66,888.61
  6. Step 6: Final answer
    x = 70,125.51

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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.