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Finding the Fourth Proportional to 71,510.96, 107,283.77 and 21,588.07

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Solution

The fourth proportional to 71,510.96, 107,283.77 and 21,588.07 is: 32,387.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,510.96 : 107,283.77 = 21,588.07 : x
  2. Step 2: Convert to fraction form
    71,510.96/107,283.77 = 21,588.07/x
  3. Step 3: Cross multiply
    71,510.96x = 107,283.77 × 21,588.07
  4. Step 4: Simplify right side
    71,510.96x = 2,316,049,536.62
  5. Step 5: Solve for x
    x = 2,316,049,536.62/71,510.96
  6. Step 6: Final answer
    x = 32,387.34

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1.5x scale

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.