Home / 77,948.97-107,569.89-49,281.21

Finding the Fourth Proportional to 77,948.97, 107,569.89 and 49,281.21

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Solution

The fourth proportional to 77,948.97, 107,569.89 and 49,281.21 is: 68,008.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,948.97 : 107,569.89 = 49,281.21 : x
  2. Step 2: Convert to fraction form
    77,948.97/107,569.89 = 49,281.21/x
  3. Step 3: Cross multiply
    77,948.97x = 107,569.89 × 49,281.21
  4. Step 4: Simplify right side
    77,948.97x = 5,301,174,338.77
  5. Step 5: Solve for x
    x = 5,301,174,338.77/77,948.97
  6. Step 6: Final answer
    x = 68,008.27

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1.5x scale

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.