Home / 77,553.33-107,020.75-47,389.12

Finding the Fourth Proportional to 77,553.33, 107,020.75 and 47,389.12

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Solution

The fourth proportional to 77,553.33, 107,020.75 and 47,389.12 is: 65,395.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,553.33 : 107,020.75 = 47,389.12 : x
  2. Step 2: Convert to fraction form
    77,553.33/107,020.75 = 47,389.12/x
  3. Step 3: Cross multiply
    77,553.33x = 107,020.75 × 47,389.12
  4. Step 4: Simplify right side
    77,553.33x = 5,071,619,164.24
  5. Step 5: Solve for x
    x = 5,071,619,164.24/77,553.33
  6. Step 6: Final answer
    x = 65,395.25

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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.