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Finding the Fourth Proportional to 81,068.41, 111,871.42 and 45,259.93

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Solution

The fourth proportional to 81,068.41, 111,871.42 and 45,259.93 is: 62,457.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,068.41 : 111,871.42 = 45,259.93 : x
  2. Step 2: Convert to fraction form
    81,068.41/111,871.42 = 45,259.93/x
  3. Step 3: Cross multiply
    81,068.41x = 111,871.42 × 45,259.93
  4. Step 4: Simplify right side
    81,068.41x = 5,063,292,638.20
  5. Step 5: Solve for x
    x = 5,063,292,638.20/81,068.41
  6. Step 6: Final answer
    x = 62,457.04

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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.