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Finding the Fourth Proportional to 82,751.60, 124,128.12 and 23,587.20

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Solution

The fourth proportional to 82,751.60, 124,128.12 and 23,587.20 is: 35,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,751.60 : 124,128.12 = 23,587.20 : x
  2. Step 2: Convert to fraction form
    82,751.60/124,128.12 = 23,587.20/x
  3. Step 3: Cross multiply
    82,751.60x = 124,128.12 × 23,587.20
  4. Step 4: Simplify right side
    82,751.60x = 2,927,834,792.06
  5. Step 5: Solve for x
    x = 2,927,834,792.06/82,751.60
  6. Step 6: Final answer
    x = 35,381.01

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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.