Home / 77,136.07-106,457.64-43,146.45

Finding the Fourth Proportional to 77,136.07, 106,457.64 and 43,146.45

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Solution

The fourth proportional to 77,136.07, 106,457.64 and 43,146.45 is: 59,547.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,136.07 : 106,457.64 = 43,146.45 : x
  2. Step 2: Convert to fraction form
    77,136.07/106,457.64 = 43,146.45/x
  3. Step 3: Cross multiply
    77,136.07x = 106,457.64 × 43,146.45
  4. Step 4: Simplify right side
    77,136.07x = 4,593,268,759.50
  5. Step 5: Solve for x
    x = 4,593,268,759.50/77,136.07
  6. Step 6: Final answer
    x = 59,547.61

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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.