Home / 72,239.24-99,636.90-52,162.40

Finding the Fourth Proportional to 72,239.24, 99,636.90 and 52,162.40

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Solution

The fourth proportional to 72,239.24, 99,636.90 and 52,162.40 is: 71,945.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,239.24 : 99,636.90 = 52,162.40 : x
  2. Step 2: Convert to fraction form
    72,239.24/99,636.90 = 52,162.40/x
  3. Step 3: Cross multiply
    72,239.24x = 99,636.90 × 52,162.40
  4. Step 4: Simplify right side
    72,239.24x = 5,197,299,832.56
  5. Step 5: Solve for x
    x = 5,197,299,832.56/72,239.24
  6. Step 6: Final answer
    x = 71,945.66

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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.