Home / 55,330.71-76,356.02-31,457.39

Finding the Fourth Proportional to 55,330.71, 76,356.02 and 31,457.39

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Solution

The fourth proportional to 55,330.71, 76,356.02 and 31,457.39 is: 43,410.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,330.71 : 76,356.02 = 31,457.39 : x
  2. Step 2: Convert to fraction form
    55,330.71/76,356.02 = 31,457.39/x
  3. Step 3: Cross multiply
    55,330.71x = 76,356.02 × 31,457.39
  4. Step 4: Simplify right side
    55,330.71x = 2,401,961,099.99
  5. Step 5: Solve for x
    x = 2,401,961,099.99/55,330.71
  6. Step 6: Final answer
    x = 43,410.99

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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.