Home / 98,804.28-136,380.56-56,391.04

Finding the Fourth Proportional to 98,804.28, 136,380.56 and 56,391.04

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Solution

The fourth proportional to 98,804.28, 136,380.56 and 56,391.04 is: 77,837.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,804.28 : 136,380.56 = 56,391.04 : x
  2. Step 2: Convert to fraction form
    98,804.28/136,380.56 = 56,391.04/x
  3. Step 3: Cross multiply
    98,804.28x = 136,380.56 × 56,391.04
  4. Step 4: Simplify right side
    98,804.28x = 7,690,641,614.18
  5. Step 5: Solve for x
    x = 7,690,641,614.18/98,804.28
  6. Step 6: Final answer
    x = 77,837.13

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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.