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Finding the Fourth Proportional to 72,000.63, 108,077.05 and 40,437.66

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Solution

The fourth proportional to 72,000.63, 108,077.05 and 40,437.66 is: 60,699.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,000.63 : 108,077.05 = 40,437.66 : x
  2. Step 2: Convert to fraction form
    72,000.63/108,077.05 = 40,437.66/x
  3. Step 3: Cross multiply
    72,000.63x = 108,077.05 × 40,437.66
  4. Step 4: Simplify right side
    72,000.63x = 4,370,383,457.54
  5. Step 5: Solve for x
    x = 4,370,383,457.54/72,000.63
  6. Step 6: Final answer
    x = 60,699.24

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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.