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Finding the Fourth Proportional to 72,953.70, 100,684.11 and 42,333.54

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Solution

The fourth proportional to 72,953.70, 100,684.11 and 42,333.54 is: 58,424.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,953.70 : 100,684.11 = 42,333.54 : x
  2. Step 2: Convert to fraction form
    72,953.70/100,684.11 = 42,333.54/x
  3. Step 3: Cross multiply
    72,953.70x = 100,684.11 × 42,333.54
  4. Step 4: Simplify right side
    72,953.70x = 4,262,314,798.05
  5. Step 5: Solve for x
    x = 4,262,314,798.05/72,953.70
  6. Step 6: Final answer
    x = 58,424.93

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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.