Home / 72,500.48-100,043.94-40,663.22

Finding the Fourth Proportional to 72,500.48, 100,043.94 and 40,663.22

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Solution

The fourth proportional to 72,500.48, 100,043.94 and 40,663.22 is: 56,111.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,500.48 : 100,043.94 = 40,663.22 : x
  2. Step 2: Convert to fraction form
    72,500.48/100,043.94 = 40,663.22/x
  3. Step 3: Cross multiply
    72,500.48x = 100,043.94 × 40,663.22
  4. Step 4: Simplify right side
    72,500.48x = 4,068,108,741.89
  5. Step 5: Solve for x
    x = 4,068,108,741.89/72,500.48
  6. Step 6: Final answer
    x = 56,111.47

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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.