Home / 77,136.36-106,449.04-45,305.80

Finding the Fourth Proportional to 77,136.36, 106,449.04 and 45,305.80

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Solution

The fourth proportional to 77,136.36, 106,449.04 and 45,305.80 is: 62,522.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,136.36 : 106,449.04 = 45,305.80 : x
  2. Step 2: Convert to fraction form
    77,136.36/106,449.04 = 45,305.80/x
  3. Step 3: Cross multiply
    77,136.36x = 106,449.04 × 45,305.80
  4. Step 4: Simplify right side
    77,136.36x = 4,822,758,916.43
  5. Step 5: Solve for x
    x = 4,822,758,916.43/77,136.36
  6. Step 6: Final answer
    x = 62,522.51

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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.