Home / 72,530.34-108,767.81-28,151.35

Finding the Fourth Proportional to 72,530.34, 108,767.81 and 28,151.35

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Solution

The fourth proportional to 72,530.34, 108,767.81 and 28,151.35 is: 42,216.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,530.34 : 108,767.81 = 28,151.35 : x
  2. Step 2: Convert to fraction form
    72,530.34/108,767.81 = 28,151.35/x
  3. Step 3: Cross multiply
    72,530.34x = 108,767.81 × 28,151.35
  4. Step 4: Simplify right side
    72,530.34x = 3,061,960,486.50
  5. Step 5: Solve for x
    x = 3,061,960,486.50/72,530.34
  6. Step 6: Final answer
    x = 42,216.27

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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.