Home / 99,629.10-137,486.38-54,307.47

Finding the Fourth Proportional to 99,629.10, 137,486.38 and 54,307.47

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Solution

The fourth proportional to 99,629.10, 137,486.38 and 54,307.47 is: 74,943.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,629.10 : 137,486.38 = 54,307.47 : x
  2. Step 2: Convert to fraction form
    99,629.10/137,486.38 = 54,307.47/x
  3. Step 3: Cross multiply
    99,629.10x = 137,486.38 × 54,307.47
  4. Step 4: Simplify right side
    99,629.10x = 7,466,536,498.29
  5. Step 5: Solve for x
    x = 7,466,536,498.29/99,629.10
  6. Step 6: Final answer
    x = 74,943.33

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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.