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Finding the Fourth Proportional to 93,261.38, 128,700.70 and 50,819.91

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Solution

The fourth proportional to 93,261.38, 128,700.70 and 50,819.91 is: 70,131.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,261.38 : 128,700.70 = 50,819.91 : x
  2. Step 2: Convert to fraction form
    93,261.38/128,700.70 = 50,819.91/x
  3. Step 3: Cross multiply
    93,261.38x = 128,700.70 × 50,819.91
  4. Step 4: Simplify right side
    93,261.38x = 6,540,557,381.26
  5. Step 5: Solve for x
    x = 6,540,557,381.26/93,261.38
  6. Step 6: Final answer
    x = 70,131.47

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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.