Home / 57,204.79-78,940.51-31,363.22

Finding the Fourth Proportional to 57,204.79, 78,940.51 and 31,363.22

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Solution

The fourth proportional to 57,204.79, 78,940.51 and 31,363.22 is: 43,280.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,204.79 : 78,940.51 = 31,363.22 : x
  2. Step 2: Convert to fraction form
    57,204.79/78,940.51 = 31,363.22/x
  3. Step 3: Cross multiply
    57,204.79x = 78,940.51 × 31,363.22
  4. Step 4: Simplify right side
    57,204.79x = 2,475,828,700.99
  5. Step 5: Solve for x
    x = 2,475,828,700.99/57,204.79
  6. Step 6: Final answer
    x = 43,280.10

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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.