Home / 57,101.49-78,798.02-31,607.90

Finding the Fourth Proportional to 57,101.49, 78,798.02 and 31,607.90

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Solution

The fourth proportional to 57,101.49, 78,798.02 and 31,607.90 is: 43,617.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,101.49 : 78,798.02 = 31,607.90 : x
  2. Step 2: Convert to fraction form
    57,101.49/78,798.02 = 31,607.90/x
  3. Step 3: Cross multiply
    57,101.49x = 78,798.02 × 31,607.90
  4. Step 4: Simplify right side
    57,101.49x = 2,490,639,936.36
  5. Step 5: Solve for x
    x = 2,490,639,936.36/57,101.49
  6. Step 6: Final answer
    x = 43,617.77

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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.