Home / 93,147.20-128,538.96-50,704.64

Finding the Fourth Proportional to 93,147.20, 128,538.96 and 50,704.64

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Solution

The fourth proportional to 93,147.20, 128,538.96 and 50,704.64 is: 69,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,147.20 : 128,538.96 = 50,704.64 : x
  2. Step 2: Convert to fraction form
    93,147.20/128,538.96 = 50,704.64/x
  3. Step 3: Cross multiply
    93,147.20x = 128,538.96 × 50,704.64
  4. Step 4: Simplify right side
    93,147.20x = 6,517,521,692.77
  5. Step 5: Solve for x
    x = 6,517,521,692.77/93,147.20
  6. Step 6: Final answer
    x = 69,970.13

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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.