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Finding the Fourth Proportional to 40,602.70, 60,901.89 and 12,898.54

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Solution

The fourth proportional to 40,602.70, 60,901.89 and 12,898.54 is: 19,347.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,602.70 : 60,901.89 = 12,898.54 : x
  2. Step 2: Convert to fraction form
    40,602.70/60,901.89 = 12,898.54/x
  3. Step 3: Cross multiply
    40,602.70x = 60,901.89 × 12,898.54
  4. Step 4: Simplify right side
    40,602.70x = 785,545,464.24
  5. Step 5: Solve for x
    x = 785,545,464.24/40,602.70
  6. Step 6: Final answer
    x = 19,347.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.