Home / 91,710.10-126,557.31-55,887.04

Finding the Fourth Proportional to 91,710.10, 126,557.31 and 55,887.04

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Solution

The fourth proportional to 91,710.10, 126,557.31 and 55,887.04 is: 77,122.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,710.10 : 126,557.31 = 55,887.04 : x
  2. Step 2: Convert to fraction form
    91,710.10/126,557.31 = 55,887.04/x
  3. Step 3: Cross multiply
    91,710.10x = 126,557.31 × 55,887.04
  4. Step 4: Simplify right side
    91,710.10x = 7,072,913,446.26
  5. Step 5: Solve for x
    x = 7,072,913,446.26/91,710.10
  6. Step 6: Final answer
    x = 77,122.51

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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.