Home / 83,491.49-124,941.60-51,916.42

Finding the Fourth Proportional to 83,491.49, 124,941.60 and 51,916.42

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Solution

The fourth proportional to 83,491.49, 124,941.60 and 51,916.42 is: 77,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,491.49 : 124,941.60 = 51,916.42 : x
  2. Step 2: Convert to fraction form
    83,491.49/124,941.60 = 51,916.42/x
  3. Step 3: Cross multiply
    83,491.49x = 124,941.60 × 51,916.42
  4. Step 4: Simplify right side
    83,491.49x = 6,486,520,707.56
  5. Step 5: Solve for x
    x = 6,486,520,707.56/83,491.49
  6. Step 6: Final answer
    x = 77,690.80

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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.