Home / 93,120.60-128,502.45-50,679.03

Finding the Fourth Proportional to 93,120.60, 128,502.45 and 50,679.03

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Solution

The fourth proportional to 93,120.60, 128,502.45 and 50,679.03 is: 69,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,120.60 : 128,502.45 = 50,679.03 : x
  2. Step 2: Convert to fraction form
    93,120.60/128,502.45 = 50,679.03/x
  3. Step 3: Cross multiply
    93,120.60x = 128,502.45 × 50,679.03
  4. Step 4: Simplify right side
    93,120.60x = 6,512,379,518.62
  5. Step 5: Solve for x
    x = 6,512,379,518.62/93,120.60
  6. Step 6: Final answer
    x = 69,934.90

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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.