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Finding the Fourth Proportional to 83,476.80, 124,984.80 and 65,044.80

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Solution

The fourth proportional to 83,476.80, 124,984.80 and 65,044.80 is: 97,387.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,476.80 : 124,984.80 = 65,044.80 : x
  2. Step 2: Convert to fraction form
    83,476.80/124,984.80 = 65,044.80/x
  3. Step 3: Cross multiply
    83,476.80x = 124,984.80 × 65,044.80
  4. Step 4: Simplify right side
    83,476.80x = 8,129,611,319.04
  5. Step 5: Solve for x
    x = 8,129,611,319.04/83,476.80
  6. Step 6: Final answer
    x = 97,387.67

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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.