Home / 50,901.36-76,381.80-21,316.70

Finding the Fourth Proportional to 50,901.36, 76,381.80 and 21,316.70

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Solution

The fourth proportional to 50,901.36, 76,381.80 and 21,316.70 is: 31,987.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,901.36 : 76,381.80 = 21,316.70 : x
  2. Step 2: Convert to fraction form
    50,901.36/76,381.80 = 21,316.70/x
  3. Step 3: Cross multiply
    50,901.36x = 76,381.80 × 21,316.70
  4. Step 4: Simplify right side
    50,901.36x = 1,628,207,916.06
  5. Step 5: Solve for x
    x = 1,628,207,916.06/50,901.36
  6. Step 6: Final answer
    x = 31,987.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.