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Finding the Fourth Proportional to 93,100.18, 128,478.82 and 50,658.98

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Solution

The fourth proportional to 93,100.18, 128,478.82 and 50,658.98 is: 69,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,100.18 : 128,478.82 = 50,658.98 : x
  2. Step 2: Convert to fraction form
    93,100.18/128,478.82 = 50,658.98/x
  3. Step 3: Cross multiply
    93,100.18x = 128,478.82 × 50,658.98
  4. Step 4: Simplify right side
    93,100.18x = 6,508,605,972.80
  5. Step 5: Solve for x
    x = 6,508,605,972.80/93,100.18
  6. Step 6: Final answer
    x = 69,909.70

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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.