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Finding the Fourth Proportional to 92,763.62, 128,014.12 and 50,322.45

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Solution

The fourth proportional to 92,763.62, 128,014.12 and 50,322.45 is: 69,445.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,763.62 : 128,014.12 = 50,322.45 : x
  2. Step 2: Convert to fraction form
    92,763.62/128,014.12 = 50,322.45/x
  3. Step 3: Cross multiply
    92,763.62x = 128,014.12 × 50,322.45
  4. Step 4: Simplify right side
    92,763.62x = 6,441,984,152.99
  5. Step 5: Solve for x
    x = 6,441,984,152.99/92,763.62
  6. Step 6: Final answer
    x = 69,445.16

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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.