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Finding the Fourth Proportional to 72,792.63, 100,508.58 and 71,630.10

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Solution

The fourth proportional to 72,792.63, 100,508.58 and 71,630.10 is: 98,903.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,792.63 : 100,508.58 = 71,630.10 : x
  2. Step 2: Convert to fraction form
    72,792.63/100,508.58 = 71,630.10/x
  3. Step 3: Cross multiply
    72,792.63x = 100,508.58 × 71,630.10
  4. Step 4: Simplify right side
    72,792.63x = 7,199,439,636.26
  5. Step 5: Solve for x
    x = 7,199,439,636.26/72,792.63
  6. Step 6: Final answer
    x = 98,903.41

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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.