Home / 72,430.76-108,636.91-28,027.14

Finding the Fourth Proportional to 72,430.76, 108,636.91 and 28,027.14

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Solution

The fourth proportional to 72,430.76, 108,636.91 and 28,027.14 is: 42,037.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,430.76 : 108,636.91 = 28,027.14 : x
  2. Step 2: Convert to fraction form
    72,430.76/108,636.91 = 28,027.14/x
  3. Step 3: Cross multiply
    72,430.76x = 108,636.91 × 28,027.14
  4. Step 4: Simplify right side
    72,430.76x = 3,044,781,885.74
  5. Step 5: Solve for x
    x = 3,044,781,885.74/72,430.76
  6. Step 6: Final answer
    x = 42,037.14

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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.